CVE-2026-40587

CVE-2026-40587 affects blueprintUE. Before 4.2.0, changing a password or completing a password reset does not invalidate existing sessions; server-side session store maps userID to sessions, and password updates modify only the users table, leaving active sessions usable. Result: an attacker with...

CVE-2026-40587 blueprintUE: Active Sessions Are Not Invalidated After Password Change or Reset

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...