CVE-2025-4128

Summary

Mattermost versions 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly restrict API access to team information, allowing guest users to bypass permissions and view information about public teams they are not members of via a direct API call to /api/v4/teams/{team_id}.

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost10.5.0 <= 10.5.4affected
MattermostMattermost9.11.0 <= 9.11.13affected
MattermostMattermost10.8.0unaffected
MattermostMattermost10.5.5unaffected
MattermostMattermost9.11.14unaffected

Weaknesses

  • CWE-863: CWE-863: Incorrect Authorization

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References