{"id":"CVE-2026-8644","state":"PUBLISHED","title":"IBM WebSphere Application Server is affected by an identity spoofing vulnerability","description":"IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to identity spoofing.","publishedAt":"2026-06-01T17:46:04.519Z","updatedAt":"2026-06-01T19:32:31.456Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","source":"ibm"},"assigner":"ibm","products":["IBM WebSphere Application Server"],"affected":[{"vendor":"IBM","product":"WebSphere Application Server","versions":[{"version":"9.0","status":"affected","lessThanOrEqual":"1.1.9.12","versionType":"semver"},{"version":"8.5","status":"affected"}],"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:*:*:*:*:*:*:*"]}],"references":["https://www.ibm.com/support/pages/node/7274740"],"weaknesses":["CWE-290"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8644.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8644","state":"PUBLISHED","datePublished":"2026-06-01T17:46:04.519Z","dateUpdated":"2026-06-01T19:32:31.456Z","assignerShortName":"ibm","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateReserved":"2026-05-14T20:28:37.520Z"},"containers":{"cna":{"title":"IBM WebSphere Application Server is affected by an identity spoofing vulnerability","descriptions":[{"lang":"en","value":"IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to identity spoofing."}],"affected":[{"vendor":"IBM","product":"WebSphere Application Server","versions":[{"version":"9.0","status":"affected","lessThanOrEqual":"1.1.9.12","versionType":"semver"},{"version":"8.5","status":"affected"}],"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:*:*:*:*:*:*:*"]}],"references":[{"url":"https://www.ibm.com/support/pages/node/7274740","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","lang":"en","description":"CWE-290 Authentication Bypass by Spoofing","type":"CWE"}]}],"providerMetadata":{"shortName":"ibm","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateUpdated":"2026-06-01T17:46:04.519Z"},"solutions":[{"lang":"en","value":"IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71422.\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.28:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71422 https://www.ibm.com/support/pages/node/7274652 \n--OR--\n· Apply Fix Pack 9.0.5.29 or later (targeted availability 3Q2026). \n\n\n\nFor V8.5.0.0 through 8.5.5.29:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71422 https://www.ibm.com/support/pages/node/7274652 \n--OR--\n· Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026). \n\n\n\n\n\n\n\nAdditional interim fixes may be available and linked off the interim fix download page.","supportingMedia":[{"type":"text/html","base64":false,"value":"

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71422.

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.28:
· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71422
--OR--
· Apply Fix Pack 9.0.5.29 or later (targeted availability 3Q2026). 

For V8.5.0.0 through 8.5.5.29:
· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71422
--OR--
· Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026). 

Additional interim fixes may be available and linked off the interim fix download page.

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