{"api_version":"1","generated_at":"2026-10-13T22:25:57+00:00","cve":"CVE-2026-105442","urls":{"html":"https://cve.report/CVE-2026-105442","api":"https://cve.report/api/cve/CVE-2026-105442.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-105442","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105442"},"summary":{"title":"IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a deserialization of untrusted data","description":"IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 Liberty could allow a remote attacker to cause a denial of service caused by an insecure deserialization in the messaging service.","state":"PUBLISHED","assigner":"ibm","published_at":"2026-10-13 21:17:26","updated_at":"2026-10-13 21:17:26"},"problem_types":["CWE-502","CWE-502 CWE-502 Deserialization of Untrusted Data"],"metrics":[{"version":"3.1","source":"psirt@us.ibm.com","type":"Primary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://www.ibm.com/support/pages/node/7292221","name":"https://www.ibm.com/support/pages/node/7292221","refsource":"psirt@us.ibm.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-105442","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105442","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"IBM","product":"WebSphere Application Server","version":"affected 8.5","platforms":[]},{"source":"CNA","vendor":"IBM","product":"WebSphere Application Server","version":"affected 9.0","platforms":[]},{"source":"CNA","vendor":"IBM","product":"WebSphere Application Server - Liberty","version":"affected 17.0.0.3 26.0.0.10 semver","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT503516 or DT503624. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to  How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 . \n\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10:\n\n\n\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT503516 https://www.ibm.com/support/pages/node/7292199 \n--OR--\n· Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).\n\n\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.29:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT503624 https://www.ibm.com/support/pages/node/7292200 \n--OR--\n· Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).  \n\n\n\nFor V8.5.0.0 through 8.5.5.31:\n· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves DT503624 https://www.ibm.com/support/pages/node/7292200 \n--OR--\n· Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).\n\n\n\n\n\n\n\nAdditional interim fixes may be available and linked off the interim fix download page.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"cpes":["cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*"],"product":"WebSphere Application Server","vendor":"IBM","versions":[{"status":"affected","version":"8.5"},{"status":"affected","version":"9.0"}]},{"cpes":["cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*","cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.10:*:*:*:*:*:*:*"],"product":"WebSphere Application Server - Liberty","vendor":"IBM","versions":[{"lessThanOrEqual":"26.0.0.10","status":"affected","version":"17.0.0.3","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 Liberty could allow a remote attacker to cause a denial of service caused by an insecure deserialization in the messaging service.

"}],"value":"IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 Liberty could allow a remote attacker to cause a denial of service caused by an insecure deserialization in the messaging service."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-13T20:17:14.541Z","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7292221"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT503516 or DT503624. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to How to determine if Liberty is using a specific feature. 

For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10:

· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT503516
--OR--
· Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.29:
· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT503624
--OR--
· Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).  

For V8.5.0.0 through 8.5.5.31:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves DT503624
--OR--
· Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).

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

"}],"value":"IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR DT503516 or DT503624. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to  How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 . \n\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10:\n\n\n\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT503516 https://www.ibm.com/support/pages/node/7292199 \n--OR--\n· Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).\n\n\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.29:\n· Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves DT503624 https://www.ibm.com/support/pages/node/7292200 \n--OR--\n· Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).  \n\n\n\nFor V8.5.0.0 through 8.5.5.31:\n· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves DT503624 https://www.ibm.com/support/pages/node/7292200 \n--OR--\n· Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).\n\n\n\n\n\n\n\nAdditional interim fixes may be available and linked off the interim fix download page."}],"title":"IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a deserialization of untrusted data"}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-105442","datePublished":"2026-10-13T20:17:14.541Z","dateReserved":"2026-10-05T13:18:39.699Z","dateUpdated":"2026-10-13T20:17:14.541Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-13 21:17:26","lastModifiedDate":"2026-10-13 21:17:26","problem_types":["CWE-502","CWE-502 CWE-502 Deserialization of Untrusted Data"],"metrics":{"cvssMetricV31":[{"source":"psirt@us.ibm.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"105442","Ordinal":"1","Title":"IBM WebSphere Application Server and WebSphere Application Serve","CVE":"CVE-2026-105442","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"105442","Ordinal":"1","NoteData":"IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 Liberty could allow a remote attacker to cause a denial of service caused by an insecure deserialization in the messaging service.","Type":"Description","Title":"IBM WebSphere Application Server and WebSphere Application Serve"}]}}}