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Untriaged
Permalink CVE-2026-26304
4.3 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): LOW
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): LOW
  • Availability impact (A): NONE
created 1 month ago
Permission Bypass in Playbook Run Creation

Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2 fail to verify run_create permission for empty playbookId, which allows team members to create unauthorized runs via the playbook run API. Mattermost Advisory ID: MMSA-2025-00542

References

Affected products

Mattermost
  • ==11.2.3
  • ==11.4.0
  • ==11.3.1
  • =<11.2.2
  • =<11.3.0

Matching in nixpkgs

pkgs.mattermostLatest

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

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