CVE-2026-5163 | Mattermost up to 11.5.1 Post Rewrite Endpoint authorization

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.VulDB Recent EntriesRead More