High severity7.6NVD Advisory· Published Feb 16, 2026· Updated Jun 17, 2026
CVE-2026-1046
CVE-2026-1046
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:*range: >=5.13.2,<5.13.3
- (no CPE)range: <=6.0, 6.2.0, 5.2.13.0
- Range: 0
Patches
Vulnerability mechanics
References
1- mattermost.com/security-updatesnvdVendor Advisory
News mentions
1- ⚡ Weekly Recap: Linux Rootkit, macOS Crypto Stealer, WebSocket Skimmers and MoreThe Hacker News · May 11, 2026