CVE-2026-3471 | Mattermost Desktop App up to 5.4.13/6.0.1/6.1.x improper authorization in handler for custom url scheme

A vulnerability classified as problematic has been found in Mattermost Desktop App up to 5.4.13/6.0.1/6.1.x. This impacts an unknown function. Performing a manipulation results in improper authorization in handler for custom url scheme.

This vulnerability is identified as CVE-2026-3471. The attack can be initiated remotely. There is not any exploit available.

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