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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2025-12689

DoS in Calls plugin via malformed UTF-8 in WebSocket request

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Status
Published
Published
Updated
Assigning organization
Mattermost

Description

Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.

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

  • 11.0.0 to ≤ 11.0.4affected
  • 10.12.0 to ≤ 10.12.2affected
  • 10.11.0 to ≤ 10.11.6affected
  • 11.1.0unaffected
  • 11.0.5unaffected
  • 10.12.3unaffected
  • 10.11.7unaffected

References