A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSe…

cve CVE-2026-97869 2 sources, 3 claims · Watch

NVD writes:
A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected com… the claim
Severity they disagree
low GitHub advisories
MEDIUM NVD
CVSS
4.1 GitHub advisories
4.1 NVD
Vendor
n/a NVD
Product
langchain4j NVD
CWE
CWE-20 GitHub advisories
CWE-20, CWE-502 NVD

How far exploitation has got

  1. No public code known
  2. Proof of concept
  3. Proof of concept, verified
  4. A Metasploit module
  5. Exploited in the wild
  6. Used in ransomware campaigns

Timeline

2026-09-25first spoke of it: A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This...GitHub advisories
2026-09-25first spoke of it: A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: "The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched."NVD

A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: "The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched."

What it is to other things

In words only, so not counted until a person confirms one:

made_byn_a
NVD says “n/a”
affectsn_a/langchain4j
NVD says “n/a · langchain4j”
Every value, with what each source said and its receipt
PropertySourceSaidMeans here
Automatable
automatable
NVDno
At least one of those steps needs a person.
receipt
Source
NVD
Its words
no
Read by
field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTCno
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
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            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
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            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
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            "valueDensity": "NOT_DEFINED",
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      "ssvcV203": [
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        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
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        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
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      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
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      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
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        "url": "https://vuldb.com/vuln/409886/cti"
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    "sourceIdentifier": "cna@vuldb.com",
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          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
CVSS
cvss
GitHub advisories4.1
receipt
Source
GitHub advisories
Said since
2026-09-26 15:00 UTC
Last answered
2026-10-06 13:46 UTC
Original
open at the source

This source has not kept a receipt for this claim yet. The next update that reads it will.

—
CVSS
cvss
NVD4.1
receipt
Source
NVD
Its words
4.1
Read by
field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-09-29 09:39 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
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}
—
Cvss4
cvss4
NVD1.2
receipt
Source
NVD
Its words
1.2
Read by
field:cve.metrics.cvssMetricV40[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV40[].cvssData.baseScore
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTC1.2
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
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                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
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      }
    ],
    "cveTags": [],
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      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
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            "authentication": "MULTIPLE",
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            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-97869",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-25T16:37:00.836381Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/security/advisories/GHSA-gmwr-7wmf-mrjm"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886/cti"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-20"
          },
          {
            "lang": "en",
            "value": "CWE-502"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Cvss4 vector
cvss4_vector
NVDCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
receipt
Source
NVD
Its words
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Read by
field:cve.metrics.cvssMetricV40[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV40[].cvssData.vectorString
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTCCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
          "cvssData": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "MULTIPLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-97869",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-25T16:37:00.836381Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/security/advisories/GHSA-gmwr-7wmf-mrjm"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886/cti"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-20"
          },
          {
            "lang": "en",
            "value": "CWE-502"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
CVSS vector
cvss_vector
NVDCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
receipt
Source
NVD
Its words
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
Read by
field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTCCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
          "cvssData": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "MULTIPLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-97869",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-25T16:37:00.836381Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/security/advisories/GHSA-gmwr-7wmf-mrjm"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886/cti"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-20"
          },
          {
            "lang": "en",
            "value": "CWE-502"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
CWE
cwe
different words
GitHub advisoriesCWE-20
receipt
Source
GitHub advisories
Said since
2026-09-26 15:00 UTC
Last answered
2026-10-06 13:46 UTC
Original
open at the source

This source has not kept a receipt for this claim yet. The next update that reads it will.

—
CWE
cwe
different words
NVDCWE-20, CWE-502
receipt
Source
NVD
Its words
CWE-20, CWE-502
Read by
field:cve.weaknesses[].description[].value
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTCCWE-20, CWE-502
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
          "cvssData": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "MULTIPLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-97869",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-25T16:37:00.836381Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/security/advisories/GHSA-gmwr-7wmf-mrjm"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886/cti"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-20"
          },
          {
            "lang": "en",
            "value": "CWE-502"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Exploitation
exploitation
NVDpoc
A public proof of concept exists, or exploitation is trivial.
receipt
Source
NVD
Its words
poc
Read by
field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTCpoc
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
          "cvssData": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "MULTIPLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-97869",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-25T16:37:00.836381Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/security/advisories/GHSA-gmwr-7wmf-mrjm"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886/cti"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-20"
          },
          {
            "lang": "en",
            "value": "CWE-502"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Product
product
NVDlangchain4j
receipt
Source
NVD
Its words
langchain4j
Read by
field:cve.affected[].affectedData[].product
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-09-29 17:49 UTClangchain4j
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
          "cvssData": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "MULTIPLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "source": "cna@vuldb.com",
          "type": "Secondary"
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      ],
      "ssvcV203": [
        {
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    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
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      },
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        "source": "cna@vuldb.com",
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      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
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      },
      {
        "source": "cna@vuldb.com",
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      {
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        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Severity
severity
conflict
GitHub advisorieslow
Below 4.0.
receipt
Source
GitHub advisories
Said since
2026-09-26 15:00 UTC
Last answered
2026-10-06 13:46 UTC
Original
open at the source

This source has not kept a receipt for this claim yet. The next update that reads it will.

—
Severity
severity
conflict
NVDMEDIUM
From 4.0 to 6.9.
receipt
Source
NVD
Its words
MEDIUM
Read by
field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTCMEDIUM
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
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      {
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              {
                "status": "affected",
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              },
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      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
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            "modifiedAttackVector": "NOT_DEFINED",
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        "type": "Secondary"
      }
    ]
  }
}
medium
Status
status
NVDAwaiting Analysis
receipt
Source
NVD
Its words
Awaiting Analysis
Read by
field:cve.vulnStatus
Said since
2026-09-29 09:39 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
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      }
    ],
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    "lastModified": "2026-09-28T15:14:01.513",
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          "impactScore": 6.4,
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      "cvssMetricV31": [
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
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          "source": "cna@vuldb.com",
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      ],
      "cvssMetricV40": [
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            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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      {
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      },
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      }
    ]
  }
}
—
Technical impact
technical_impact
NVDpartial
The attacker gains limited control, or limited information.
receipt
Source
NVD
Its words
partial
Read by
field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since
2026-10-06 12:31 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-06 12:31 UTCpartial
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
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            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
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              {
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              {
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              {
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    "cveTags": [],
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      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
          "cvssData": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "MULTIPLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
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          "source": "cna@vuldb.com",
          "type": "Secondary",
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        }
      ],
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          "cvssData": {
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            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-97869",
            "options": [
              {
                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-25T16:37:00.836381Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/security/advisories/GHSA-gmwr-7wmf-mrjm"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886/cti"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-20"
          },
          {
            "lang": "en",
            "value": "CWE-502"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Vendor
vendor
NVDn/a
receipt
Source
NVD
Its words
n/a
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-09-29 17:49 UTCn/a
2026-09-29 09:39 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:langchain4j:langchain4j:*:*:*:*:*:*:*:*"
            ],
            "modules": [
              "LangChain4j-agentic"
            ],
            "product": "langchain4j",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "1.5.3-beta10"
              },
              {
                "status": "affected",
                "version": "1.11.10-beta18"
              },
              {
                "status": "affected",
                "version": "1.18.1-beta27"
              },
              {
                "status": "unaffected",
                "version": "1.5.3-beta11"
              },
              {
                "status": "unaffected",
                "version": "1.11.10-beta19"
              },
              {
                "status": "unaffected",
                "version": "1.18.1-beta28"
              }
            ]
          }
        ],
        "source": "cna@vuldb.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: \"The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched.\""
      }
    ],
    "id": "CVE-2026-97869",
    "lastModified": "2026-09-28T15:14:01.513",
    "metrics": {
      "cvssMetricV2": [
        {
          "acInsufInfo": false,
          "baseSeverity": "MEDIUM",
          "cvssData": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "MULTIPLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:M/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.2,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "source": "cna@vuldb.com",
          "type": "Secondary",
          "userInteractionRequired": false
        }
      ],
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 3.4,
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 1.2,
            "baseSeverity": "LOW",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "cna@vuldb.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
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                "exploitation": "poc"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-25T16:37:00.836381Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-25T16:17:31.740",
    "references": [
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/afish3201-debug/CVE/blob/main/Insecure%20Jackson%20Default%20Typing%20Leads%20to%20Arbitrary%20Class%20Instantiation%20in%20LangChain4j%20Agentic%20Module.md"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/releases/tag/1.18.1"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://github.com/langchain4j/langchain4j/security/advisories/GHSA-gmwr-7wmf-mrjm"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/cve/CVE-2026-97869"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/submit/911825"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886"
      },
      {
        "source": "cna@vuldb.com",
        "url": "https://vuldb.com/vuln/409886/cti"
      }
    ],
    "sourceIdentifier": "cna@vuldb.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-20"
          },
          {
            "lang": "en",
            "value": "CWE-502"
          }
        ],
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Every claim, by kind

vulnerability

A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This vulnerability affects the function AgenticScopeSerializer.fromJson of the file AgenticScopeJsonSerializationIT.java of the component LangChain4j-agentic. This manipulation causes deserialization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. Upgrading to version 1.5.3-beta11, 1.11.10-beta19 and 1.18.1-beta28 is able to resolve this issue. Upgrading the affected component is advised. The project maintainer kindly explains: "The issue was reported to us privately on 23 July 2026 and fixed in releases published on 29 July 2026. It is tracked as GHSA-gmwr-7wmf-mrjm. Exploitation requires an application to have enabled AgenticScope persistence, which is opt-in, and an attacker who can already write to that store. All maintained release lines have been patched."
zetlyn/cve-nvd · 2026-09-25
automatable no cvss 4.1 cvss4 1.2 cvss4_vector CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X cvss_vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L cwe CWE-20, CWE-502 exploitation poc product langchain4j severity MEDIUM status Awaiting Analysis technical_impact partial vendor n/a source
A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This...
zetlyn/cve-ghsa · 2026-09-25
cvss 4.1 cwe CWE-20 severity low source
A flaw has been found in langchain4j up to 1.5.3-beta10/1.11.10-beta18/1.18.1-beta27. This...
zetlyn/cve-ghsa · 2026-09-25
cvss 4.1 cwe CWE-20 severity low source