CVE-2026-5163 | Mattermost up to 11.5.1 Post Rewrite Endpoint authorization (EUVD-2026-30753 / Nessus ID 316490)
A vulnerability categorized as problematic has been discovered in Mattermost up to 11.5.1. This issue affects some unknown processing of the component Post Rewrite Endpoint. Executing a manipulation can lead to missing authorization.
This vulnerability is handled as CVE-2026-5163. The attack can be executed remotely. There is not any exploit available.
It is advisable to upgrade the affected component.