high7.6
CVE-2026-1046
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…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost Desktop | from 5.13.0 before 5.13.3 from 6.0.0 before 6.0.3 |