CVE-2026-86348 | Mattermost up to 11.9.x denial of service

A vulnerability was found in Mattermost up to 10.11.22/11.7.7/11.8.4/11.9.0/11.9.x. It has been declared as problematic. Affected is an unknown function. Such manipulation leads to denial of service.

This vulnerability is documented as CVE-2026-86348. The attack can be executed remotely. There is not any exploit available.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More