We use these services and cookies to improve your user experience. You may opt out if you wish, however, this may limit some features on this site.
Please see our statement on Data Privacy.
Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly enforce access controls for guest users accessing channel member information, allowing authenticated guest users to view metadata about members of public channels via the channel members API endpoint.
Reserved 2025-02-28 | Published 2025-05-30 | Updated 2025-05-30 | Assigner MattermostCWE-863: Incorrect Authorization
Bob10x1
mattermost.com/security-updates
Support options