CVE-2024-34029 Information

Description

Mattermost versions 9.5.x <= 9.5.3 9.7.x <= 9.7.1 and 8.1.x <= 8.1.12 fail to perform a proper authorization check in the /api/v4/groups//channels//link endpoint which allows a user to learn the members of an AD/LDAP group that is linked to a team by adding the group to a channel even if the user has no access to the team.

Reference

https://mattermost.com/security-updates