UpHeron
All vulnerabilities

Servers and applications

CVE-2025-41443

Mattermost versions 10.5.x <= 10.5.12, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when accessing channel information which allows guest users to discover active public channels and their metadata via the `/api/v4/teams/{team_id}/channels/ids` endpoint

Severity
Medium 4.3
Published
16 Oct 2025
Last changed
19 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
10.5.11, 10.11.3
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 10.5.0 before 10.5.11
  • From 10.11.0 before 10.11.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-41443
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-41443