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CVE-2026-8646

IBM WebSphere Application Server 9.0 and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are vulnerable to HTTP request smuggling. A remote attacker could smuggle a specially crafted request to the application server thereby allowing the attacker to bypass security controls, spoof identity, escalate privilege, and expose sensitive information.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0915e90578588b514bf5444abed535aabf42a6892b24cb735d6c4e6e72a5de53
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"cpes":["cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.6:*:*:*:*:*:*:*"],"product":"WebSphere Application Server - Liberty","vendor":"IBM","versions":[{"lessThanOrEqual":"26.0.0.6","status":"affected","version":"17.0.0.3","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9751306965e4041f79ea7fcc60ef31339de2ece38c1d77ebabfd290efa937c34 · sha256:6dbe40a8fdd75429… · /containers/cna/affected/1

{"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:*:*:*:*:*:*:*"],"product":"WebSphere Application Server","vendor":"IBM","versions":[{"lessThanOrEqual":"7.0.2 Interim Fix 035","status":"affected","version":"9.0.0","versionType":"semver"},{"lessThanOrEqual":"7.0.3 Interim Fix 017","status":"affected","version":"8.5.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9751306965e4041f79ea7fcc60ef31339de2ece38c1d77ebabfd290efa937c34 · sha256:6dbe40a8fdd75429… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"cpes":["cpe:2.3:a:ibm:websphere_application_server___liberty:17.0.0.3:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.6:*:*:*:*:*:*:*"],"product":"WebSphere Application Server - Liberty","vendor":"IBM","versions":[{"lessThanOrEqual":"26.0.0.6","status":"affected","version":"17.0.0.3","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9751306965e4041f79ea7fcc60ef31339de2ece38c1d77ebabfd290efa937c34 · sha256:6dbe40a8fdd75429… · /containers/cna/affected/1
{"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:*:*:*:*:*:*:*"],"product":"WebSphere Application Server","vendor":"IBM","versions":[{"lessThanOrEqual":"7.0.2 Interim Fix 035","status":"affected","version":"9.0.0","versionType":"semver"},{"lessThanOrEqual":"7.0.3 Interim Fix 017","status":"affected","version":"8.5.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9751306965e4041f79ea7fcc60ef31339de2ece38c1d77ebabfd290efa937c34 · sha256:6dbe40a8fdd75429… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9751306965e4041f79ea7fcc60ef31339de2ece38c1d77ebabfd290efa937c34 · sha256:6dbe40a8fdd75429… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-444","description":"CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9751306965e4041f79ea7fcc60ef31339de2ece38c1d77ebabfd290efa937c34 · sha256:6dbe40a8fdd75429… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7276579"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9751306965e4041f79ea7fcc60ef31339de2ece38c1d77ebabfd290efa937c34 · sha256:6dbe40a8fdd75429… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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