{"id":"CVE-2026-40587","state":"PUBLISHED","title":"blueprintUE: Active Sessions Are Not Invalidated After Password Change or Reset","description":"blueprintUE is a tool to help Unreal Engine developers. Prior to 4.2.0, when a user changes their password via the profile edit page, or when a password reset is completed via the reset link, neither operation invalidates existing authenticated sessions for that user. A server-side session store associates userID → session; the current password change/reset flow updates only the password column in the users table and does not destroy or mark invalid any active sessions. As a result, an attacker who has already compromised a session retains full access to the account indefinitely — even after the legitimate user has detected the intrusion and changed their password — until the session's natural expiry time (configured as SESSION_GC_MAXLIFETIME, defaulting to 86400 seconds / 24 hours, with SESSION_LIFETIME=0 meaning persistent until browser close or GC, whichever is later). This vulnerability is fixed in 4.2.0.","publishedAt":"2026-04-21T17:11:23.740Z","updatedAt":"2026-04-21T20:37:05.304Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["blueprintue blueprintue-self-hosted-edition"],"affected":[{"vendor":"blueprintue","product":"blueprintue-self-hosted-edition","versions":[{"version":"< 4.2.0","status":"affected"}]}],"references":["https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-gqpq-x62g-p4mg"],"weaknesses":["CWE-613"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40587.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40587","state":"PUBLISHED","datePublished":"2026-04-21T17:11:23.740Z","dateUpdated":"2026-04-21T20:37:05.304Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-14T13:24:29.476Z"},"containers":{"cna":{"title":"blueprintUE: Active Sessions Are Not Invalidated After Password Change or Reset","descriptions":[{"lang":"en","value":"blueprintUE is a tool to help Unreal Engine developers. Prior to 4.2.0, when a user changes their password via the profile edit page, or when a password reset is completed via the reset link, neither operation invalidates existing authenticated sessions for that user. A server-side session store associates userID → session; the current password change/reset flow updates only the password column in the users table and does not destroy or mark invalid any active sessions. As a result, an attacker who has already compromised a session retains full access to the account indefinitely — even after the legitimate user has detected the intrusion and changed their password — until the session's natural expiry time (configured as SESSION_GC_MAXLIFETIME, defaulting to 86400 seconds / 24 hours, with SESSION_LIFETIME=0 meaning persistent until browser close or GC, whichever is later). This vulnerability is fixed in 4.2.0."}],"affected":[{"vendor":"blueprintue","product":"blueprintue-self-hosted-edition","versions":[{"version":"< 4.2.0","status":"affected"}]}],"references":[{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-gqpq-x62g-p4mg","name":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-gqpq-x62g-p4mg","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-613","lang":"en","description":"CWE-613: Insufficient Session Expiration","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-21T17:11:23.740Z"},"source":{"advisory":"GHSA-gqpq-x62g-p4mg","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-gqpq-x62g-p4mg","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T19:59:20.313580Z","id":"CVE-2026-40587","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-21T20:37:05.304Z"}}]}}}