Skip to main content

CVE-2025-29928

Deletion of sessions did not revoke sessions when using database session storage​

ADDENDUM May 30, 2025​

As of version 2025.4, the option to store sessions in cache has been removed; sessions are now exclusively stored in the database. See our 2025.4 release notes for more information.

Summary​

When authentik was configured to use the database for session storage (which is a non-default setting), deleting sessions via the Web Interface or the API would not revoke the session and the session holder would continue to have access to authentik.

This also affects automatic session deletion when a user is set to inactive or a user is deleted.

The session backend was configured via the AUTHENTIK_SESSION_STORAGE setting, which was removed in version 2025.4.

Patches​

authentik 2025.2.3 and 2024.12.4 fix this issue.

Workarounds​

Switching to the cache-based session storage until the authentik instance can be upgraded is recommended. This will however also delete all existing sessions and users will have to re-authenticate.

For more information​

If you have any questions or comments about this advisory: