CVE-2026-41133— pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)
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I. Basic Information for CVE-2026-41133
Vulnerability Information
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Vulnerability Title
pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的会话过期机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
pyLoad 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pyLoad是pyLoad开源的一个用 Python 编写的免费开源下载管理器。 pyLoad 0.5.0b3.dev97及之前版本存在代码问题漏洞，该漏洞源于在登录时缓存role和permission，并在管理员更改用户角色或权限后继续使用这些缓存值授权请求，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-41133
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IV. Related Vulnerabilities
Same product: pyload
- CVE-2026-40594
pyLoad: Session Cookie Security Downgrade via Untrusted X-Fo - CVE-2026-40071
pyLoad WebUI JSON permission mismatch lets ADD/DELETE users - CVE-2026-35592
pyLoad has an Incomplete Tar Path Traversal Fix in UnTar._sa - CVE-2026-35586
Authorization Bypass for SSL Certificate/Key Configuration D - CVE-2026-35464
pyLoad has an incomplete fix for CVE-2026-33509: unprotected
Same vendor: pyload
- CVE-2026-40594
pyLoad: Session Cookie Security Downgrade via Untrusted X-Fo - CVE-2026-40071
pyLoad WebUI JSON permission mismatch lets ADD/DELETE users - CVE-2026-35592
pyLoad has an Incomplete Tar Path Traversal Fix in UnTar._sa - CVE-2026-35586
Authorization Bypass for SSL Certificate/Key Configuration D - CVE-2026-35464
pyLoad has an incomplete fix for CVE-2026-33509: unprotected
Same weakness: CWE-613
- CVE-2026-41902
FreeScout's user invitation hash never expires: permanent un - CVE-2026-41519
Weblate's API Token Not Invalidated on Password Change - CVE-2026-41891
CI4MS: Deactivated User Session Bypass (active=0) - CVE-2026-40934
jupyter-server authentication cookies remain valid after pas - CVE-2026-42421
OpenClaw < 2026.4.8 - WebSocket Session Persistence via Shar
V. Comments for CVE-2026-41133
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