CVE-2026-12985 | Mattermost up to 11.7.7/11.8.4/11.9.0 Dynamic Client Registration redirect

A vulnerability labeled as problematic has been found in Mattermost up to 11.7.7/11.8.4/11.9.0. This vulnerability affects unknown code of the component Dynamic Client Registration. The manipulation results in open redirect.

This vulnerability is known as CVE-2026-12985. It is possible to launch the attack remotely. No exploit is available.

The affected component should be upgraded.VulDB Recent EntriesRead More