Bug 2451791 (CVE-2026-3112) - CVE-2026-3112 Mattermost: Mattermost: Information Disclosure via Advanced Logging file target path validation bypass
Summary: CVE-2026-3112 Mattermost: Mattermost: Information Disclosure via Advanced Log...
Keywords:
Status: NEW
Alias: CVE-2026-3112
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-26 17:02 UTC by OSIDB Bzimport
Modified: 2026-03-26 19:30 UTC (History)
0 users

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Description OSIDB Bzimport 2026-03-26 17:02:53 UTC 
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
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