VULNERABILITY INTELLIGENCE

CVE-2026-4643

CVSS score3.5 LOW
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-05-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

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

Weakness classification

  • CWE-754: Improper Check for Unusual or Exceptional Conditions

Primary references