# pyLoad insufficient session expiration after permission changes

Source: https://junglewise.ai/threats/pyload-insufficient-session-expiration-after-permission-changes-b01d3381  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-14. Updated: 2026-06-28  
License: CC BY 4.0 with a link back

Severity: low · CVSS 2.9 · Published 2026-04-14

pyLoad, a download management tool, fails to terminate active user sessions when an administrator changes that user's permissions. This means a user whose access was revoked or restricted can continue to perform unauthorized actions as long as their original session remains active. This could lead to unauthorized data access or management actions that the administrator intended to block.

Technologies: [pyLoad Next Gen](https://junglewise.ai/threats/technologies/pyload-next-gen), [pyload-ng (PyPI)](https://junglewise.ai/threats/technologies/pyload-ng). Vendors: [pyLoad](https://junglewise.ai/threats/vendors/pyload), [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 2.9, published 14 April 2026.

**Which products and versions are affected?** pyLoad Next Gen <= 0.5.0b3.dev97; pyload-ng (PyPI) <= 0.5.0b3.dev97.

**Is there a fix for This vulnerability?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is This vulnerability attacked?** It is attacked over the network, in a software library.

**Am I affected?** Check whether you run pyLoad Next Gen or pyload-ng (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A session management vulnerability (CWE-613) exists in pyLoad where user permissions are not re-validated for active sessions following an administrative change. When an administrator modifies or revokes a user's privileges, the application fails to invalidate existing session tokens or refresh the permission set associated with those tokens. Consequently, a user with an established session can continue to perform actions and access resources that their updated permissions should prohibit. The attack requires a pre-existing valid session to be active during the permission change. A fix was identified in commit e95804fb0d06cbb07d2ba380fc494d9ff89b68c1.

## Affected products

- pyLoad pyload-ng <= 0.5.0b3.dev97

## Timeline

- 2026-04-13: disclosed
- 2026-04-14: advisory

## References

- [https://api.github.com/users/PinkDraconian](https://api.github.com/users/PinkDraconian)
- [https://github.com/PinkDraconian](https://github.com/PinkDraconian)
- [https://api.github.com/users/PinkDraconian/gists%7B/gist_id%7D](https://api.github.com/users/PinkDraconian/gists%7B/gist_id%7D)
- [https://api.github.com/users/PinkDraconian/repos](https://api.github.com/users/PinkDraconian/repos)
- [https://avatars.githubusercontent.com/u/44903767?v=4](https://avatars.githubusercontent.com/u/44903767?v=4)
- [https://api.github.com/users/PinkDraconian/events%7B/privacy%7D](https://api.github.com/users/PinkDraconian/events%7B/privacy%7D)

## Related threats

- [pyLoad unauthenticated template access and information disclosure](https://junglewise.ai/threats/cve-2026-75597-pyload-unauthenticated-access-to-web-path-filename-bypasses)
- [pyLoad API denial of service in multipart file upload handling](https://junglewise.ai/threats/cve-2026-48484-pyload-lack-of-input-size-validation-leads-to-denial-of-service)
- [pyload-ng authentication bypass in getUserData/get_userdata](https://junglewise.ai/threats/pyload-ng-getuserdata-get-userdata-exposed-at-perms-any-allow-any-cd197c9d)
- [pyLoad rate-limit bypass and audit-log spoofing via X-Forwarded-For header](https://junglewise.ai/threats/pyload-rate-limit-bypass-and-audit-log-spoofing-via-trusted-client-0df0fd12)
- [pyLoad session invalidation bypass in privilege revocation and password change](https://junglewise.ai/threats/pyload-privilege-revocation-and-password-change-through-the-rest-api-do-8e7301ba)