CVE-2026-40587
- Source
- https://cve.org/CVERecord?id=CVE-2026-40587
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40587.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-40587
- Aliases
-
- GHSA-gqpq-x62g-p4mg
- Published
- 2026-04-21T17:11:23.740Z
- Modified
- 2026-07-15T01:49:13.070184558Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- 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 SESSIONGCMAXLIFETIME, 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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40587.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-613" ] }- References