IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph constructio…

cve CVE-2026-81204 1 source, 1 claim · Watch

NVD writes:
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction. the claim

Severity: CRITICAL NVD
CVSS: 9.8 NVD
Vendor: IBM NVD
Product: Langflow OSS NVD
CWE: CWE-94 NVD

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-09-10

first spoke of it: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.

NVD

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.

What it is to other things

affects	langflow/langflow NVD
made_by	langflow NVD

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

made_by	`ibm` NVD says “IBM”
affects	`ibm/langflow_oss` NVD says “IBM · Langflow OSS”

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

yes

An attacker can reliably run all of the kill chain's first four steps without a person.

receipt

Source: NVD
Its words: yes
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 UTC	yes
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

9.8

receipt

Source: NVD
Its words: 9.8
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-09-29 09:45 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:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 UTC	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

NVD

CWE-94

receipt

Source: NVD
Its words: CWE-94
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 UTC	CWE-94
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Exploitation

exploitation

NVD

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
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 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

Langflow OSS

receipt

Source: NVD
Its words: Langflow OSS
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 UTC	Langflow OSS
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

CRITICAL

From the CVSS base score at 9.0 and above.

receipt

Source: NVD
Its words: CRITICAL
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 UTC	CRITICAL
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

critical

Status

status

NVD

Analyzed

receipt

Source: NVD
Its words: Analyzed
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:45 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:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

total

The attacker gains full control of the component, or all of its information.

receipt

Source: NVD
Its words: total
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 UTC	total
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

IBM

receipt

Source: NVD
Its words: IBM
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 UTC	IBM
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:langflow_oss:1.11.5:*:*:*:*:*:*:*"
            ],
            "product": "Langflow OSS",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "1.11.5",
                "status": "affected",
                "version": "1.0.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "A70DB1EF-A715-4E5C-93CE-219011A95CAD",
                "versionEndExcluding": "1.11.6",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction."
      }
    ],
    "id": "CVE-2026-81204",
    "lastModified": "2026-09-16T00:55:47.703",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-81204",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-11T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-10T22:17:01.580",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7286666"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.

zetlyn/cve-nvd · 2026-09-10

automatable yes cvss 9.8 cvss_vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H cwe CWE-94 exploitation none product Langflow OSS severity CRITICAL status Analyzed technical_impact total vendor IBM

source