CVE-2026-4643

LowCVSS 3.5/10Last modified Jun 17, 2026

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

Metrics

CVSS 3.1 3.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-754

Affected software

No affected versions have been published.

Timeline

Published: May 18, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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