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Details of issue NIXPKGS-2026-0262

NIXPKGS-2026-0262
published on
Permalink CVE-2026-1046
7.6 HIGH
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): LOW
  • User interaction (UI): REQUIRED
  • Scope (S): CHANGED
  • Confidentiality impact (C): HIGH
  • Integrity impact (I): NONE
  • Availability impact (A): LOW
updated 1 month, 4 weeks ago by @LeSuisse Activity log
  • Created automatic suggestion 1 month, 4 weeks ago
  • @LeSuisse ignored
    4 packages
    • mattermost-desktop
    • python312Packages.mattermostdriver
    • python313Packages.mattermostdriver
    • python314Packages.mattermostdriver
    1 month, 4 weeks 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
Arbitrary application execution via unvalidated server-controlled URLs in Help menu

Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost server to execute arbitrary executables on a user’s system via the user clicking on certain items in the Help menu Mattermost Advisory ID: MMSA-2026-00577

References

Affected products

Mattermost
  • ==6.1.0
  • ==5.13.3.0
  • =<5.2.13
  • ==6.0.3.0
  • =<6.2.0

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