{"id":"CVE-2026-40587","summary":"blueprintUE: Active Sessions Are Not Invalidated After Password Change or Reset","details":"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.","aliases":["GHSA-gqpq-x62g-p4mg"],"modified":"2026-08-07T11:31:27.537804873Z","published":"2026-04-21T17:11:23.740Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-613"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40587.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40587.json"},{"type":"ADVISORY","url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-gqpq-x62g-p4mg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40587"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/blueprintue/blueprintue-self-hosted-edition","events":[{"introduced":"0"},{"fixed":"28689950b0fc1c6a0c5db2a034a03fdc9747467c"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"4.2.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v4.1.2","v4.1.1","v4.1.0","v4.0.0","v3.2.0","v3.1.0","v3.0.0","v2.1.0","v2.0.1","v2.0.0","v1.0.6","v1.0.5","v1.0.4","v1.0.3","v1.0.2","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40587.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"}]}