CVE-2026-41133

HIGH 8.8

pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-613
Vendor	pyload
Product	pyload
Published	Apr 21, 2026

Stay Ahead of the Next One

Get instant alerts for pyload pyload

Be the first to know when new high vulnerabilities affecting pyload pyload are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

pyload / pyload

<= 0.5.0b3.dev97

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/pyload/pyload/security/advisories/GHSA-66hx-chf7-3332 github.com: https://github.com/pyload/pyload/commit/e95804fb0d06cbb07d2ba380fc494d9ff89b68c1