CVE-2026-1629 | Mattermost up to 10.11.10/11.3.x Private Channel operation after expiration (EUVD-2026-12516)
A vulnerability classified as problematic was found in Mattermost up to 10.11.10/11.3.x. Affected by this issue is some unknown functionality of the component Private Channel Handler. The manipulation results in operation on a resource after expiration.
This vulnerability is known as CVE-2026-1629. It is possible to launch the attack remotely. No exploit is available.
Upgrading the affected component is advised.