All intelligence
// vulnerability record
cached · NVD via COSMOS syncCVE-2026-9859
MEDIUMpublished 2026-08-17 22:17 UTC · 11 hours ago
6.5
CVSS / 10
// description
Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21, 11.8.x <= 11.8.3 fail to enforce PermissionManageBoardRoles on the channelId field of the batch endpoint, which allows an authenticated board editor to relink any board they can edit to an arbitrary channel via a crafted PATCH request. Mattermost Advisory ID: MMSA-2026-00686
// weaknesses (CWE)
- CWE-863