{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8620", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "state": "PUBLISHED", "assignerShortName": "ibm", "dateReserved": "2026-05-14T18:19:54.491Z", "datePublished": "2026-05-26T17:15:00.501Z", "dateUpdated": "2026-05-27T13:12:59.224Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-05-26T17:15:00.501Z"}, "title": "IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-444", "description": "CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "type": "CWE"}]}], "affected": [{"vendor": "IBM", "product": "Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty", "versions": [{"status": "affected", "version": "8.5, 9.0", "lessThanOrEqual": "Interim Fix 002", "versionType": "semver"}], "cpes": ["cpe:2.3:a:ibm:web_server_plug_ins_for_websphere_application_server_and_websphere_liberty:8.5:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:web_server_plug_ins_for_websphere_application_server_and_websphere_liberty:8.5.0:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to HTTP request smuggling in the Web Server Plug-ins through a specially crafted request.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to HTTP request smuggling in the Web Server Plug-ins through a specially crafted request.</p>"}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7274072", "tags": ["vendor-advisory", "patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N"}}], "solutions": [{"lang": "en", "value": "IBM strongly recommends addressing the vulnerability now by applying a currently available Web Server Plug-ins interim fix or fix pack that contains the fix for APAR PH71342.\u00a0\n\n\n\n\n\n\n\nWeb Server Plug-ins for IBM WebSphere Application Server (used with either WebSphere Application Server traditional or Liberty):\n\n\n\nFor V9.0.0.0 through 9.0.5.27:\n\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Web Server Plug-ins Interim Fix that resolves\u00a0 PH71342 https://www.ibm.com/support/pages/node/7273976 \n--OR--\n\u00b7 Apply Web Server Plug-ins Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).\u00a0\u00a0\n\n\n\nFor V8.5.0.0 through 8.5.5.29:\n\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Web Server Plug-ins Interim Fix that resolves\u00a0 PH71342 https://www.ibm.com/support/pages/node/7273976 \n--OR--\n\u00b7 Apply Web Server Plug-ins 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": "<p>IBM strongly recommends addressing the vulnerability now by applying a currently available Web Server Plug-ins interim fix or fix pack that contains the fix for APAR PH71342.&nbsp;</p><p></p><p><strong>Web Server Plug-ins for IBM WebSphere Application Server</strong> (used with either WebSphere Application Server traditional or Liberty):</p><p><strong>For V9.0.0.0 through 9.0.5.27:</strong><br>\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Web Server Plug-ins Interim Fix that resolves&nbsp;<a href=\"https://www.ibm.com/support/pages/node/7273976\" rel=\"nofollow\">PH71342</a><br>--OR--<br>\u00b7 Apply Web Server Plug-ins Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).&nbsp;&nbsp;</p><p><strong>For V8.5.0.0 through 8.5.5.29:</strong><br>\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Web Server Plug-ins Interim Fix that resolves&nbsp;<a href=\"https://www.ibm.com/support/pages/node/7273976\" rel=\"nofollow\">PH71342</a><br>--OR--<br>\u00b7 Apply Web Server Plug-ins Fix Pack 8.5.5.30 or later (targeted availability 3Q2026).</p><p></p><p>Additional interim fixes may be available and linked off the interim fix download page.</p>"}]}], "x_generator": {"engine": "ibm-cvegen"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-27T13:12:49.669182Z", "id": "CVE-2026-8620", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-05-27T13:12:59.224Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-8620", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-27T13:12:49.669182Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-27T13:12:54.302Z"}}], "cna": {"title": "IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins", "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"cpes": ["cpe:2.3:a:ibm:web_server_plug_ins_for_websphere_application_server_and_websphere_liberty:8.5:*:*:*:*:*:*:*", "cpe:2.3:a:ibm:web_server_plug_ins_for_websphere_application_server_and_websphere_liberty:8.5.0:*:*:*:*:*:*:*"], "vendor": "IBM", "product": "Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty", "versions": [{"status": "affected", "version": "8.5, 9.0", "versionType": "semver", "lessThanOrEqual": "Interim Fix 002"}]}], "solutions": [{"lang": "en", "value": "IBM strongly recommends addressing the vulnerability now by applying a currently available Web Server Plug-ins interim fix or fix pack that contains the fix for APAR PH71342.\u00a0\n\n\n\n\n\n\n\nWeb Server Plug-ins for IBM WebSphere Application Server (used with either WebSphere Application Server traditional or Liberty):\n\n\n\nFor V9.0.0.0 through 9.0.5.27:\n\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Web Server Plug-ins Interim Fix that resolves\u00a0 PH71342 https://www.ibm.com/support/pages/node/7273976 \n--OR--\n\u00b7 Apply Web Server Plug-ins Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).\u00a0\u00a0\n\n\n\nFor V8.5.0.0 through 8.5.5.29:\n\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Web Server Plug-ins Interim Fix that resolves\u00a0 PH71342 https://www.ibm.com/support/pages/node/7273976 \n--OR--\n\u00b7 Apply Web Server Plug-ins 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", "value": "<p>IBM strongly recommends addressing the vulnerability now by applying a currently available Web Server Plug-ins interim fix or fix pack that contains the fix for APAR PH71342.&nbsp;</p><p></p><p><strong>Web Server Plug-ins for IBM WebSphere Application Server</strong> (used with either WebSphere Application Server traditional or Liberty):</p><p><strong>For V9.0.0.0 through 9.0.5.27:</strong><br>\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Web Server Plug-ins Interim Fix that resolves&nbsp;<a href=\"https://www.ibm.com/support/pages/node/7273976\" rel=\"nofollow\">PH71342</a><br>--OR--<br>\u00b7 Apply Web Server Plug-ins Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).&nbsp;&nbsp;</p><p><strong>For V8.5.0.0 through 8.5.5.29:</strong><br>\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Web Server Plug-ins Interim Fix that resolves&nbsp;<a href=\"https://www.ibm.com/support/pages/node/7273976\" rel=\"nofollow\">PH71342</a><br>--OR--<br>\u00b7 Apply Web Server Plug-ins Fix Pack 8.5.5.30 or later (targeted availability 3Q2026).</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/7274072", "tags": ["vendor-advisory", "patch"]}], "x_generator": {"engine": "ibm-cvegen"}, "descriptions": [{"lang": "en", "value": "IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to HTTP request smuggling in the Web Server Plug-ins through a specially crafted request.", "supportingMedia": [{"type": "text/html", "value": "<p>IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to HTTP request smuggling in the Web Server Plug-ins through a specially crafted request.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-444", "description": "CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')"}]}], "providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2026-05-26T17:15:00.501Z"}}}, "cveMetadata": {"cveId": "CVE-2026-8620", "state": "PUBLISHED", "dateUpdated": "2026-05-27T13:12:59.224Z", "dateReserved": "2026-05-14T18:19:54.491Z", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "datePublished": "2026-05-26T17:15:00.501Z", "assignerShortName": "ibm"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:*", "matchCriteriaId": "73767F57-89C3-4EB5-B090-5AE91589AD2E", "versionEndExcluding": "8.5.5.30", "versionStartIncluding": "8.5.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*", "matchCriteriaId": "37D2D42E-5CEF-4DDF-B0BF-3307A184A7B8", "versionEndExcluding": "8.5.5.30", "versionStartIncluding": "8.5.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:*", "matchCriteriaId": "4AEFE5BE-FDBC-48B3-923A-BA86BC8FB7E5", "versionEndExcluding": "9.0.5.28", "versionStartIncluding": "9.0.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*", "matchCriteriaId": "A965982C-4634-40B2-8AE9-3C715261B1FA", "versionEndExcluding": "9.0.5.28", "versionStartIncluding": "9.0.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to HTTP request smuggling in the Web Server Plug-ins through a specially crafted request."}], "id": "CVE-2026-8620", "lastModified": "2026-06-02T18:40:34.260", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.7, "source": "psirt@us.ibm.com", "type": "Primary"}]}, "published": "2026-05-26T18:16:56.350", "references": [{"source": "psirt@us.ibm.com", "tags": ["Vendor Advisory", "Patch"], "url": "https://www.ibm.com/support/pages/node/7274072"}], "sourceIdentifier": "psirt@us.ibm.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "psirt@us.ibm.com", "type": "Primary"}]}

{}