Incorrect Permission Assignment for Critical Resource

Overview Affected versions of this package are vulnerable to Incorrect Permission Assignment for Critical Resource in the mmctl export download process. An attacker can gain unauthorized access to sensitive data by reading the bulk export file created with overly permissive file permissions...

CVE-2026-3113

CVE-2026-3113 affects Mattermost (versions listed) where bulk exports fail to enforce file permissions during download, enabling other local server users to read exported contents. Root cause: permissions are not properly set on the downloaded bulk export, allowing access beyond the intended owne...