CVE-2026-93849 | Mattermost up to 11.7.10/11.8.5/11.9.1/11.10.1 WebSocket Msgpack Decoder allocation of resources

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A vulnerability has been found in Mattermost up to 11.7.10/11.8.5/11.9.1/11.10.1 and classified as problematic. This issue affects some unknown processing of the component WebSocket Msgpack Decoder. The manipulation leads to allocation of resources.

This vulnerability is referenced as CVE-2026-93849. Remote exploitation of the attack is possible. No exploit is available.

The affected component should be upgraded.VulDB Recent EntriesRead More