VULNERABILITY INTELLIGENCE

CVE-2026-24661

CVSS score3.7 LOW
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-04-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Description

Mattermost Plugins versions <=2.1.3.0 fail to limit the request body size on the {{/changes}} webhook endpoint which allows an authenticated attacker to cause memory exhaustion and denial of service via sending an oversized JSON payload. Mattermost Advisory ID: MMSA-2026-00611

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-770

Primary references