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

INFO

Published Date :

2026-03-26T16:28:07.362Z

Last Modified :

2026-03-26T19:52:11.107Z

Source :

Mattermost
AFFECTED PRODUCTS

The following products are affected by CVE-2026-3109 vulnerability.

Vendors Products
Mattermost
  • Mattermost
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3109.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact