CVE-2026-3116

4.9 MEDIUM
Published: March 26, 2026 Modified: March 26, 2026
View on NVD

Description

Mattermost Plugins versions <=11.4 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to validate incoming request size which allows an authenticated attacker to cause service disruption via the webhook endpoint. Mattermost Advisory ID: MMSA-2026-00589

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://mattermost.com/security-updates
Source: responsibledisclosure@mattermost.com

1 reference(s) from NVD

Quick Stats

CVSS v3 Score
4.9 / 10.0
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)