IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling.

cve CVE-2026-15328 1 source, 1 claim · Watch

NVD writes:
IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling. the claim

Severity: HIGH NVD
CVSS: 8.1 NVD
Vendor: IBM NVD
Product: WebSphere Application Server NVD
CWE: CWE-444 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

2026-07-28

first spoke of it: IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling.

NVD

What it is to other things

affects	ibm/websphere_application_server NVD
made_by	ibm NVD

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

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 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	no
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E9B7FD32-5DA2-4A69-B39E-A419DBC06221",
                "versionEndExcluding": "8.5.5.31",
                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
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              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*",
                "matchCriteriaId": "4C1FBCD8-54C7-4C29-A3BA-5A07C5948B40",
                "versionEndExcluding": "26.0.0.8",
                "versionStartIncluding": "17.0.0.3",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling."
      }
    ],
    "id": "CVE-2026-15328",
    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.2,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        },
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          },
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          "source": "nvd@nist.gov",
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      ],
      "ssvcV203": [
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          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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            "role": "CISA Coordinator",
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    "published": "2026-07-28T21:17:27.920",
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      {
        "source": "psirt@us.ibm.com",
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        "url": "https://www.ibm.com/support/pages/node/7281625"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Modified",
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        "description": [
          {
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          }
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        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

NVD

8.1

receipt

Source: NVD
Its words: 8.1
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-10-06 11:32 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:32 UTC	8.1
2026-09-29 09:45 UTC	7.4

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E9B7FD32-5DA2-4A69-B39E-A419DBC06221",
                "versionEndExcluding": "8.5.5.31",
                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "BA0DBCF1-7255-420A-B0A4-04C90BAE14F6",
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            "negate": false,
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      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling."
      }
    ],
    "id": "CVE-2026-15328",
    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
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          "cvssData": {
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            "attackVector": "NETWORK",
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            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          "source": "psirt@us.ibm.com",
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
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      "ssvcV203": [
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              },
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            "role": "CISA Coordinator",
            "timestamp": "2026-07-29T00:00:00+00:00",
            "version": "2.0.3"
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    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7281625"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-444"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

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

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:H/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 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CVSS:3.1/AV:N/AC:H/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:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
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                "versionEndExcluding": "8.5.5.31",
                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
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            "negate": false,
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    "cveTags": [],
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        "lang": "en",
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      }
    ],
    "id": "CVE-2026-15328",
    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
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          "impactScore": 5.2,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
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      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
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          }
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    },
    "published": "2026-07-28T21:17:27.920",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
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        ],
        "url": "https://www.ibm.com/support/pages/node/7281625"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
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          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

NVD

CWE-444

receipt

Source: NVD
Its words: CWE-444
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	CWE-444
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E9B7FD32-5DA2-4A69-B39E-A419DBC06221",
                "versionEndExcluding": "8.5.5.31",
                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "BA0DBCF1-7255-420A-B0A4-04C90BAE14F6",
                "versionEndExcluding": "9.0.5.29",
                "versionStartIncluding": "9.0.0.0",
                "vulnerable": true
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              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*",
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            "negate": false,
            "operator": "OR"
          }
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    ],
    "cveTags": [],
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      }
    ],
    "id": "CVE-2026-15328",
    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.2,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-15328",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-07-29T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-07-28T21:17:27.920",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7281625"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-444"
          }
        ],
        "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 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	none
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E9B7FD32-5DA2-4A69-B39E-A419DBC06221",
                "versionEndExcluding": "8.5.5.31",
                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "BA0DBCF1-7255-420A-B0A4-04C90BAE14F6",
                "versionEndExcluding": "9.0.5.29",
                "versionStartIncluding": "9.0.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*",
                "matchCriteriaId": "4C1FBCD8-54C7-4C29-A3BA-5A07C5948B40",
                "versionEndExcluding": "26.0.0.8",
                "versionStartIncluding": "17.0.0.3",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling."
      }
    ],
    "id": "CVE-2026-15328",
    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.2,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-15328",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-07-29T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-07-28T21:17:27.920",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7281625"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-444"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

WebSphere Application Server

receipt

Source: NVD
Its words: WebSphere Application Server
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	WebSphere Application Server
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E9B7FD32-5DA2-4A69-B39E-A419DBC06221",
                "versionEndExcluding": "8.5.5.31",
                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "BA0DBCF1-7255-420A-B0A4-04C90BAE14F6",
                "versionEndExcluding": "9.0.5.29",
                "versionStartIncluding": "9.0.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*",
                "matchCriteriaId": "4C1FBCD8-54C7-4C29-A3BA-5A07C5948B40",
                "versionEndExcluding": "26.0.0.8",
                "versionStartIncluding": "17.0.0.3",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling."
      }
    ],
    "id": "CVE-2026-15328",
    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.2,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-15328",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-07-29T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-07-28T21:17:27.920",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7281625"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-444"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

NVD

HIGH

From 7.0 to 8.9.

receipt

Source: NVD
Its words: HIGH
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	HIGH
2026-09-29 09:45 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E9B7FD32-5DA2-4A69-B39E-A419DBC06221",
                "versionEndExcluding": "8.5.5.31",
                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "BA0DBCF1-7255-420A-B0A4-04C90BAE14F6",
                "versionEndExcluding": "9.0.5.29",
                "versionStartIncluding": "9.0.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*",
                "matchCriteriaId": "4C1FBCD8-54C7-4C29-A3BA-5A07C5948B40",
                "versionEndExcluding": "26.0.0.8",
                "versionStartIncluding": "17.0.0.3",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling."
      }
    ],
    "id": "CVE-2026-15328",
    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.2,
          "source": "psirt@us.ibm.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-15328",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-07-29T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-07-28T21:17:27.920",
    "references": [
      {
        "source": "psirt@us.ibm.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.ibm.com/support/pages/node/7281625"
      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-444"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

high

Status

status

NVD

Modified

receipt

Source: NVD
Its words: Modified
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:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
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      }
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    ],
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    "lastModified": "2026-09-23T21:16:58.357",
    "metrics": {
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
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        },
        {
          "cvssData": {
            "attackComplexity": "HIGH",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
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                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-07-29T00:00:00+00:00",
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          }
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    "published": "2026-07-28T21:17:27.920",
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      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
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          }
        ],
        "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 12:29 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:29 UTC	total
2026-09-29 09:45 UTC	—

What the source handed over

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  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
            "versions": [
              {
                "status": "affected",
                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.7:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
            "versions": [
              {
                "lessThanOrEqual": "26.0.0.7",
                "status": "affected",
                "version": "17.0.0.3",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
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          "source": "psirt@us.ibm.com",
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      "ssvcV203": [
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    ],
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        ],
        "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

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    "affected": [
      {
        "affectedData": [
          {
            "cpes": [
              "cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*",
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              "cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*",
              "cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "WebSphere Application Server",
            "vendor": "IBM",
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                "version": "9.0"
              },
              {
                "status": "affected",
                "version": "8.5"
              }
            ]
          },
          {
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            ],
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            "product": "WebSphere Application Server - Liberty",
            "vendor": "IBM",
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              {
                "lessThanOrEqual": "26.0.0.7",
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                "version": "17.0.0.3",
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              }
            ]
          }
        ],
        "source": "psirt@us.ibm.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
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                "versionStartIncluding": "8.5.0.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",
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      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "options": [
              {
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              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-07-29T00:00:00+00:00",
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          }
        }
      ]
    },
    "published": "2026-07-28T21:17:27.920",
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      {
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        ],
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      }
    ],
    "sourceIdentifier": "psirt@us.ibm.com",
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          {
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            "value": "CWE-444"
          }
        ],
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

IBM WebSphere Application Server and IBM WebSphere Application Server - Liberty is vulnerable to HTTP request smuggling.

zetlyn/cve-nvd · 2026-07-28

automatable no cvss 8.1 cvss_vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H cwe CWE-444 exploitation none product WebSphere Application Server severity HIGH status Modified technical_impact total vendor IBM

source