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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-24692

Guest users can bypass read permissions via search API

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Status
Published
Published
Updated
Assigning organization
Mattermost

Description

Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to properly enforce read permissions in search API endpoints which allows guest users without read permissions to access posts and files in channels via search API requests. Mattermost Advisory ID: MMSA-2025-00554

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mattermost Mattermost

Default version status: unaffected

  • 11.3.0 to ≤ 11.3.0affected
  • 11.2.0 to ≤ 11.2.2affected
  • 10.11.0 to ≤ 10.11.10affected
  • 11.4.0unaffected
  • 11.3.1unaffected
  • 11.2.3unaffected
  • 10.11.11unaffected

References