CVE-2025-13321

Mattermost Desktop App logging sensitive information and fails to clear data on server deletion

Published Dec 17, 2025 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Description
Mattermost Desktop App versions <6.0.0 fail to sanitize sensitive information from Mattermost logs and clear data on server deletion which allows an attacker with access to the users system to gain access to potentially sensitive information via reading the application logs.

Remediation

Vendor Solution

Update Mattermost Desktop App to versions 6.0.0 or higher.

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-g6qx-wq5w-wr8v Mattermost Desktop App exposes sensitive information in its application logs
References
History
Type Values Removed Values Added
First Time appeared Mattermost mattermost Desktop
CPEs cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*
Vendors & Products Mattermost mattermost Desktop
Type Values Removed Values Added
First Time appeared Mattermost
Mattermost mattermost
Vendors & Products Mattermost
Mattermost mattermost
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Mattermost Desktop App versions <6.0.0 fail to sanitize sensitive information from Mattermost logs and clear data on server deletion which allows an attacker with access to the users system to gain access to potentially sensitive information via reading the application logs.
Title Mattermost Desktop App logging sensitive information and fails to clear data on server deletion
Weaknesses CWE-532
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Dec 17, 2025, 7:29 PM
Reserved
Nov 17, 2025, 3:51 PM
Status
Analyzed
Published
Dec 17, 2025, 7:16 PM
Modified
Oct 13, 2026, 11:10 AM