{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-105442", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-10-05T13:18:39.699Z", "datePublished": "2026-10-13T20:17:14.541Z", "dateUpdated": "2026-10-14T16:56:20.607Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-10-13T20:17:14.541Z"}, "title": "IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a deserialization of untrusted data", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "WebSphere Application Server", "versions": [{"status": "affected", "version": "8.5"}, {"status": "affected", "version": "9.0"}], "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:*:*:*:*:*:*:*"]}, {"vendor": "IBM", "product": "WebSphere Application Server - Liberty", "versions": [{"status": "affected", "version": "17.0.0.3", "lessThanOrEqual": "26.0.0.10", "versionType": "semver"}], "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:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7292221", "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": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}], "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 DT503516 or DT503624. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to\u00a0 How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 .\u00a0\n\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10:\n\n\n\n\u00b7 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\u00b7 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\u00b7 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\u00b7 Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).\u00a0\u00a0\n\n\n\nFor V8.5.0.0 through 8.5.5.31:\n\u00b7 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\u00b7 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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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\u00a0<a href=\"https://www.ibm.com/support/pages/node/6553910\" rel=\"nofollow\">How to determine if Liberty is using a specific feature</a>.\u00a0</p><div><p><strong>For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10:</strong></p><p>\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves <a href=\"https://www.ibm.com/support/pages/node/7292199\" rel=\"nofollow\">DT503516</a><br/>--OR--<br/>\u00b7 Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).</p></div><p><strong>For IBM WebSphere Application Server traditional:</strong></p><p><strong>For V9.0.0.0 through 9.0.5.29:</strong><br/>\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves <a href=\"https://www.ibm.com/support/pages/node/7292200\" rel=\"nofollow\">DT503624</a><br/>--OR--<br/>\u00b7 Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).\u00a0\u00a0</p><p><strong>For V8.5.0.0 through 8.5.5.31:</strong><br/>\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves <a href=\"https://www.ibm.com/support/pages/node/7292200\" rel=\"nofollow\">DT503624</a><br/>--OR--<br/>\u00b7 Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).</p><p></p><p>Additional interim fixes may be available and linked off the interim fix download page.</p>"}]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-14T16:55:21.531162Z", "id": "CVE-2026-105442", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-14T16:56:20.607Z"}}]}}

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To determine if a feature is enabled for WebSphere Application Server Liberty, refer to\u00a0 How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 .\u00a0\n\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10:\n\n\n\n\u00b7 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\u00b7 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\u00b7 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\u00b7 Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).\u00a0\u00a0\n\n\n\nFor V8.5.0.0 through 8.5.5.31:\n\u00b7 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\u00b7 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.", "supportingMedia": [{"type": "text/html", "value": "<p>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\u00a0<a href=\"https://www.ibm.com/support/pages/node/6553910\" rel=\"nofollow\">How to determine if Liberty is using a specific feature</a>.\u00a0</p><div><p><strong>For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.10:</strong></p><p>\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves <a href=\"https://www.ibm.com/support/pages/node/7292199\" rel=\"nofollow\">DT503516</a><br/>--OR--<br/>\u00b7 Apply Fix Pack 26.0.0.11 or later (targeted availability 4Q2026).</p></div><p><strong>For IBM WebSphere Application Server traditional:</strong></p><p><strong>For V9.0.0.0 through 9.0.5.29:</strong><br/>\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves <a href=\"https://www.ibm.com/support/pages/node/7292200\" rel=\"nofollow\">DT503624</a><br/>--OR--<br/>\u00b7 Apply Fix Pack 9.0.5.30 or later (targeted availability 4Q2026).\u00a0\u00a0</p><p><strong>For V8.5.0.0 through 8.5.5.31:</strong><br/>\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves <a href=\"https://www.ibm.com/support/pages/node/7292200\" rel=\"nofollow\">DT503624</a><br/>--OR--<br/>\u00b7 Apply Fix Pack 8.5.5.32 or later (targeted availability 4Q2026).</p><p></p><p>Additional interim fixes may be available and linked off the interim fix download page.</p>", "base64": false}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7292221", "tags": ["vendor-advisory", "patch"]}], "descriptions": [{"lang": "en", "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.", "supportingMedia": [{"type": "text/html", "value": "<p>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.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-10-13T20:17:14.541Z"}}}, "cveMetadata": {"cveId": "CVE-2026-105442", "state": "PUBLISHED", "dateUpdated": "2026-10-14T16:56:20.607Z", "dateReserved": "2026-10-05T13:18:39.699Z", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "datePublished": "2026-10-13T20:17:14.541Z", "assignerShortName": "ibm"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"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"}]}], "source": "psirt@us.ibm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "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."}], "id": "CVE-2026-105442", "lastModified": "2026-10-14T17:18:15.073", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "psirt@us.ibm.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-105442", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-14T16:55:21.531162Z", "version": "2.0.3"}}]}, "published": "2026-10-13T21:17:26.913", "references": [{"source": "psirt@us.ibm.com", "url": "https://www.ibm.com/support/pages/node/7292221"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "psirt@us.ibm.com", "type": "Secondary"}]}

{}