CVEvulnerability

CVE-2026-1046

6.5 MEDIUM Published 2026-02-16 Modified 2026-10-15 Official page ↗
Status
Analyzed
Published
2026-02-16
Last modified
2026-10-15
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weaknesses
CWE-939

Description

Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost server to execute arbitrary executables on a user’s system via the user clicking on certain items in the Help menu Mattermost Advisory ID: MMSA-2026-00577

Affected configurations

• mattermost mattermost desktop (>= 5.13.0 < 5.13.3) • mattermost mattermost desktop (>= 6.0.0 < 6.0.3)

Related

Weakness · CWE (1)

  • CWE-939 Improper Authorization in Handler for Custom URL Scheme weakness

References