UpHeron
All vulnerabilities

Servers and applications

CVE-2025-11776

Mattermost versions <11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint

Severity
Medium 4.3
Published
14 Nov 2025
Last changed
19 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
11.0.0
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Every version before 11.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-11776
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-11776