CVE-2026-15814 | Mattermost up to 10.11.22/11.7.7/11.8.4/11.9.0 Image allocation of resources

September 14, 2026 Yanac

A vulnerability, which was classified as problematic, was found in Mattermost up to 10.11.22/11.7.7/11.8.4/11.9.0. This affects an unknown function of the component Image Handler. Executing a manipulation can lead to allocation of resources.

This vulnerability is registered as CVE-2026-15814. It is possible to launch the attack remotely. No exploit is available.

You should upgrade the affected component.VulDB Recent EntriesRead More