VULNERABILITY INTELLIGENCE

CVE-2026-3112

CVSS score6.8 MEDIUM

EPSS probability0.44%

CISA KEVNot currently listed

Published2026-03-26

Last modified2026-06-17

Description

Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to validate Advanced Logging file target paths which allows system administrators to read arbitrary host files via malicious AdvancedLoggingJSON configuration in support packet generation. Mattermost Advisory ID: MMSA-2025-00562