CVEvulnerability
CVE-2026-4643
3.5 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 3.5 LOW — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-754
Description
Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking {{window.close()}} in the renderer context, leading to a denial of service condition at the client level. Mattermost Advisory ID: MMSA-2026-00633
Affected configurations
• mattermost mattermost desktop (<= 5.4.13.0)
• mattermost mattermost desktop (>= 6.0.0 <= 6.0.1)
• mattermost mattermost desktop (>= 6.1.0 < 6.2.0)
Related
Weakness · CWE (1)
- CWE-754 Improper Check for Unusual or Exceptional Conditions weakness
References
- https://mattermost.com/security-updates Vendor Advisory