CVE-2026-10819 | Mattermost up to 10.11.20/11.6.5/11.7.4/11.8.1 Animated GIF Upload denial of service

July 27, 2026 Yanac

A vulnerability was found in Mattermost up to 10.11.20/11.6.5/11.7.4/11.8.1. It has been declared as problematic. This affects an unknown function of the component Animated GIF Upload. The manipulation results in denial of service.

This vulnerability is cataloged as CVE-2026-10819. The attack may be launched remotely. There is no exploit available.

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