medium6.5
CVE-2026-8075
Mattermost Desktop App versions <=6.2 5.5.13 6.0.2.0 fail to properly null check when checking for headers in the Mattermost Desktop App which allows any user …
Impact
Mattermost Desktop App versions <=6.2 5.5.13 6.0.2.0 fail to properly null check when checking for headers in the Mattermost Desktop App which allows any user to crash another channel members Desktop App via posting a malicious link with an embedded image that misses one of those headers. Mattermost Advisory ID: MMSA-2026-00668
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost Desktop | before 5.13.6 after 6.0.0 through 6.0.2 from 6.2.0 before 6.2.1 |