CVE-2026-27769 | Mattermost up to 10.11.12/11.4.x Conntexted Workspaces Feature authorization

A vulnerability described as problematic has been identified in Mattermost up to 10.11.12/11.4.x. This vulnerability affects unknown code of the component Conntexted Workspaces Feature. Executing a manipulation can lead to missing authorization.

This vulnerability is tracked as CVE-2026-27769. The attack can be launched remotely. No exploit exists.

Upgrading the affected component is recommended.