Description
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to enforce request body size limits on plugin HTTP endpoints which allows an attacker to cause a denial of service via crafted oversized HTTP requests.. Mattermost Advisory ID: MMSA-2026-00646
CVSS 4.9EPSS 0.254%Risk 0.5
View source- Published
- 2026-05-22 11:16:23
- Affected versions
- <=11.6.0,<=11.5.3,<=11.4.4,<=10.11.14
- Type
- Critical software
- Vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H