CVE-2026-41133: pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)
pyLoad is a free and open-source download manager written in Python. Versions up to and including 0.5.0b3.dev97 cache role and permission in the session at login and continues to authorize requests using these cached values, even after an admin changes the user's role/permissions in the database. As a result, an already logged-in user can keep old (revoked) privileges until logout/session expiry, enabling continued privileged actions. This is a core authorization/session-consistency issue and is not resolved by toggling an optional security feature. Commit e95804fb0d06cbb07d2ba380fc494d9ff89b68c1 contains a fix for the issue.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-41133?
CVE-2026-41133 is considered a high severity vulnerability due to its ability to bypass privilege revocation.
How do I fix CVE-2026-41133?
To resolve CVE-2026-41133, upgrade pyLoad to a version beyond 0.5.0b3.dev97 where the issue has been addressed.
What does CVE-2026-41133 affect?
CVE-2026-41133 affects pyLoad versions up to and including 0.5.0b3.dev97, which is an open-source download manager.
What kind of vulnerability is CVE-2026-41133?
CVE-2026-41133 is a privilege escalation vulnerability that allows stale session rights to persist after a role or permission change.
What should I ensure after fixing CVE-2026-41133?
After fixing CVE-2026-41133, ensure that sessions are properly invalidated after any role or permission changes to maintain security.