Arbitrary File Read via Advanced Logging Support Packet_CVE-2026-3112

6.8 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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

Basic Information

ID CVE-2026-3112

Source Mattermost

Published Mar 26, 2026 at 16:29

Modified Mar 26, 2026 at 16:51

Affected Product

Vendor Mattermost

Product Mattermost

Version 11.4.0

Affected Versions Mattermost Mattermost 11.4.0
Mattermost Mattermost 11.3.0
Mattermost Mattermost 11.2.0
Mattermost Mattermost 10.11.0

CWE Classification

CWE-22

References

mattermost.com /security-updates

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    "published": "2026-03-26T16:29:54.399Z",
    "modified": "2026-03-26T16:51:15.488Z",
    "type": "cve",
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