CVE-2026-3109

Publication date

2026-03-26 16:28:07

Family

Mattermost

State

PUBLISHED

Description

Mattermost Plugins versions <=11.4 10.11.11.0 fail to validate webhook request timestamps which allows an attacker to corrupt Zoom meeting state in Mattermost via replayed webhook requests. Mattermost Advisory ID: MMSA-2026-00584