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CVE PROGRAM SOURCE RECORD2.7 Low

CVE-2026-16045

Delegated OAuth tokens could revoke unrelated OAuth application authorizations

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Status
Published
Published
Updated
Assigning organization
Mattermost

Description

Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 Mattermost failed to restrict OAuth deauthorization and personal access token management endpoints to direct user sessions, which allowed an OAuth app with a delegated user token to revoke the user's authorizations or tokens for other integrations via account-management endpoints.. Mattermost Advisory ID: MMSA-2026-00704

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

  • 11.7.0 to ≤ 11.7.6affected
  • 10.11.0 to ≤ 10.11.21affected
  • 11.9.0unaffected
  • 11.7.7unaffected
  • 10.11.22unaffected

References