{"id":"CVE-2026-86589","state":"PUBLISHED","title":"Apache Answer: User Center integration does not revoke first-login sessions after central account suspension","description":"Incorrect implementation of authentication algorithm vulnerability in Apache Answer.\n\n\n\nThis issue affects Apache Answer: through 2.0.2.\n\n\n\nA flaw in the User Center login integration can cause a newly created external user session to omit its external identity, allowing subsequent requests to bypass central account suspension or deletion checks until the session\n  expires or is revoked.\n\n\n\nUsers are recommended to upgrade to version 2.0.3, which fixes the issue.","publishedAt":"2026-10-19T09:35:27.540Z","updatedAt":"2026-10-30T16:35:36.307Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Answer"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Answer","packageURL":"pkg:software-id/apache.org/answer","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.0.2","versionType":"semver"}]}],"references":["https://lists.apache.org/thread/t8mbzfolzlqz4z5hcwq3v0lnwjqb2tl5","http://www.openwall.com/lists/oss-security/2026/10/16/33"],"weaknesses":["CWE-303"],"ingestedAt":"2026-10-30T16:46:06.675Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86589.json","commit":"3cf5ba03e4cbb8914db61a64f787b6e810184617","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86589","state":"PUBLISHED","datePublished":"2026-10-19T09:35:27.540Z","dateUpdated":"2026-10-30T16:35:36.307Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-09-08T07:11:41.733Z"},"containers":{"cna":{"title":"Apache Answer: User Center integration does not revoke first-login sessions after central account suspension","descriptions":[{"lang":"en","value":"Incorrect implementation of authentication algorithm vulnerability in Apache Answer.\n\n\n\nThis issue affects Apache Answer: through 2.0.2.\n\n\n\nA flaw in the User Center login integration can cause a newly created external user session to omit its external identity, allowing subsequent requests to bypass central account suspension or deletion checks until the session\n  expires or is revoked.\n\n\n\nUsers are recommended to upgrade to version 2.0.3, which fixes the issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Answer","packageURL":"pkg:software-id/apache.org/answer","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.0.2","versionType":"semver"}]}],"references":[{"url":"https://lists.apache.org/thread/t8mbzfolzlqz4z5hcwq3v0lnwjqb2tl5","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"moderate"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-303","description":"CWE-303 Incorrect implementation of authentication algorithm","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-19T09:35:27.540Z"},"source":{"discovery":"EXTERNAL"},"credits":[{"lang":"en","value":"ascanner","type":"reporter"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/16/33"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-19T10:14:34.300Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.4,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T16:35:32.842845Z","id":"CVE-2026-86589","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":"2026-10-30T16:35:36.307Z"}}]}}}