Ash Authentication Phoenix
The issue affects the ash authentication phoenix library, where session tokens remain valid on the server after a user logs out. This creates a security gap where compromised tokens can continue to work, even after the user logs out. The sessions stored in the database still expire, limiting the duration during which this could be exploited. Users cannot fully invalidate their sessions when logging out from shared or potentially compromised devices. However, changing one's password does invalidate all other sessions. This may cause compliance issues with security frameworks requiring complete session invalidation.