CVE-2024-23493: Mattermost Server

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Mattermost fails to properly authorize the requests fetching team associated AD/LDAP groups, allowing a user to fetch details of AD/LDAP groups of a team that they are not a member of. 

Affected products

• Mattermost Mattermost Server: before 8.1.9 (fixed in 8.1.9); from 9.0.0, before 9.2.5 (fixed in 9.2.5); from 9.4.0, before 9.4.2 (fixed in 9.4.2); version 9.3.0 only

Published 2024-02-29. Last modified 2026-06-17.