{"id":"CVE-2026-77816","state":"PUBLISHED","title":"IBM WebSphere Application Server Liberty Improper Certificate Validation","description":"IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 administrative client could allow man-in-the-middle attacks. An attacker could exploit this vulnerability to obtain sensitive information.","publishedAt":"2026-10-13T20:15:07.289Z","updatedAt":"2026-10-14T16:54:53.451Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","source":"ibm"},"assigner":"ibm","products":["IBM WebSphere Application Server - Liberty"],"affected":[{"vendor":"IBM","product":"WebSphere Application Server - Liberty","versions":[{"version":"17.0.0.3","status":"affected","lessThanOrEqual":"26.0.0.9","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:26.0.0.9:*:*:*:*:*:*:*"]}],"references":["https://www.ibm.com/support/pages/node/7291394"],"weaknesses":["CWE-295"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77816.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77816","state":"PUBLISHED","datePublished":"2026-10-13T20:15:07.289Z","dateUpdated":"2026-10-14T16:54:53.451Z","assignerShortName":"ibm","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateReserved":"2026-08-21T14:21:33.569Z"},"containers":{"cna":{"title":"IBM WebSphere Application Server Liberty Improper Certificate Validation","descriptions":[{"lang":"en","value":"IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 administrative client could allow man-in-the-middle attacks. An attacker could exploit this vulnerability to obtain sensitive information."}],"affected":[{"vendor":"IBM","product":"WebSphere Application Server - Liberty","versions":[{"version":"17.0.0.3","status":"affected","lessThanOrEqual":"26.0.0.9","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:26.0.0.9:*:*:*:*:*:*:*"]}],"references":[{"url":"https://www.ibm.com/support/pages/node/7291394","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":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.5,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-295","lang":"en","description":"CWE-295 Improper Certificate Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"ibm","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","dateUpdated":"2026-10-13T20:15:07.289Z"},"solutions":[{"lang":"en","value":"IBM strongly recommends addressing the vulnerabilities now by applying the fix pack(s) listed below.\n\n\n\nFor IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.9:\n· Apply Liberty Fix Pack  26.0.0.10 https://www.ibm.com/support/pages/node/7289741  (availability October 2026) or later fix pack.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>IBM strongly recommends addressing the vulnerabilities now by applying the fix pack(s) listed below.</p><p><strong>For IBM WebSphere Application Server Liberty 17.0.0.3 - 26.0.0.9:</strong><br/>· Apply Liberty Fix Pack <a href=\"https://www.ibm.com/support/pages/node/7289741\" rel=\"nofollow\">26.0.0.10</a> (availability October 2026) or later fix pack. </p>"}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-14T16:54:33.841408Z","id":"CVE-2026-77816","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-14T16:54:53.451Z"}}]}}}