Name: CVE-2026-3109: Improper Check for Unusual or Exceptional Conditions
Creator: Rapid7
Published: 2026-03-26T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-3109, CWE-754, CVSS 2.2, EPSS 0.00307

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

CVSS Details

CVSS 3.1 Base Score: 2.2
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L)

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CVSS Details

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