Mattermost Desktop App exposes sensitive information in its application logs
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.
A fix is available for direct download via the Mattermost Desktop repository, but it has not been uploaded to the npm registry at time of publication.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | mattermost-desktop | <= 3.6.0 | no fix |
References
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-532- Platform
- npm
- Package
mattermost-desktop- Disclosed
- 17.12.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-g6qx-wq5w-wr8v - CC BY 4.0
Vulnerability history: mattermost-desktop
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 7
- First → latest
- 06.2024 12.2025
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Medium 3
- Low 4
Disclosures per year
- 2024: 5
- 2025: 2
- 2026: 0
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Mattermost Desktop App exposes sensitive information in its application logs this entry
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