CVE-2026-3112 — Arbitrary File Read via Advanced Logging Support Packet
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 administrat…
Published: 2026-03-26 · CVSS: 6.8 · CVSS 3.1
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
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7