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TI-2026-29761 Aliases CVE-2026-41133GHSA-66hx-chf7-3332

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

Priority HIGH 73CWE-613Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-613.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00325 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pyloadpyloadup to 0.5.0b3.dev97—No fix listedCNA
—pyload-ng (PyPI)up to 0.5.0b3.dev97—No fix listedGHSA-66hx-chf7-3332
  • pyload Vendorpyload Affected up to 0.5.0b3.dev97 Fixed in — No fix listed CNA
  • pyload-ng (PyPI) Vendor— Affected up to 0.5.0b3.dev97 Fixed in — No fix listed GHSA-66hx-chf7-3332

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pyload:pyload:*:*:*:*:*:*:*:*before 2026-04-13Vulnerablepyload
  • cpe:2.3:a:pyload:pyload:*:*:*:*:*:*:*:* Versions before 2026-04-13 Vulnerable ·pyload

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41133
  2. 2026-10-03 Alias added: GHSA-66hx-chf7-3332

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • TI-2023-00282 Code Injection in pyload/pyload CVSS 3.1CRITICAL 9.8
  • TI-2023-00412 Excessive Attack Surface in pyload/pyload CVSS 3.1CRITICAL 9.8
  • TI-2026-26332 pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration CVSS 4.0CRITICAL 9.3
  • TI-2026-25907 pyload-ng: Authentication Bypass via Host Header Injection in ClickNLoad CVSS 4.0HIGH 8.8
  • TI-2024-32088 pyLoad vulnerable to remote code execution by download to /.pyload/scripts using /flashgot API CVSS 3.1CRITICAL 9.1
  • TI-2026-25905 pyload-ng: SETTINGS Permission Users Can Achieve Remote Code Execution via Unrestricted Reconnect Script Configuration CVSS 3.1HIGH 8.8
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences