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

INFO

Published Date :

2026-02-16T12:10:38.668Z

Last Modified :

2026-02-17T17:05:58.569Z

Source :

Mattermost
AFFECTED PRODUCTS

The following products are affected by CVE-2026-1046 vulnerability.

Vendors Products
Mattermost
  • Mattermost
  • Mattermost Desktop
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-1046.

URL Resource
https://mattermost.com/security-updates cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact