Description
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
CVSS 6.5EPSS 0.24%Risk 0.66
View source- Published
- 2026-07-17 11:17:15
- Affected versions
- <=6.2
- Type
- Critical software
- Last modified
- 2026-07-30 14:44:35
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H