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Details of issue NIXPKGS-2026-0265

NIXPKGS-2026-0265
published on
Permalink CVE-2026-20796
3.1 LOW
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): HIGH
  • Privileges required (PR): LOW
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): LOW
  • Integrity impact (I): NONE
  • Availability impact (A): NONE
updated 1 month, 4 weeks ago by @LeSuisse Activity log
  • Created automatic suggestion 2 months ago
  • @LeSuisse ignored
    4 packages
    • mattermost-desktop
    • python312Packages.mattermostdriver
    • python313Packages.mattermostdriver
    • python314Packages.mattermostdriver
    2 months ago
  • @LeSuisse deleted
    5 maintainers
    • @fsagbuya
    • @Kranzes
    • @numinit
    • @mgdelacroix
    • @ryantm
    1 month, 4 weeks ago maintainer.delete
  • @LeSuisse accepted 1 month, 4 weeks ago
  • @LeSuisse published on GitHub 1 month, 4 weeks ago
Time-of-check time-of-use vulnerability in common teams API

Mattermost versions 10.11.x <= 10.11.9 fail to properly validate channel membership at the time of data retrieval which allows a deactivated user to learn team names they should not have access to via a race condition in the /common_teams API endpoint.. Mattermost Advisory ID: MMSA-2025-00549

References

Affected products

Mattermost
  • ==11.3.0
  • =<10.11.9
  • ==10.11.10

Matching in nixpkgs

pkgs.mattermostLatest

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle

Ignored packages (4)

Package maintainers

Ignored maintainers (5) 
Fixed in:
* Unstable: https://github.com/NixOS/nixpkgs/pull/480349 / https://github.com/NixOS/nixpkgs/pull/478724
* 25.11: https://github.com/NixOS/nixpkgs/pull/480574 / https://github.com/NixOS/nixpkgs/pull/479561