VULNERABILITY INTELLIGENCE
CVE-2026-85390
CVSS score7.1 HIGH
EPSS probability0.49%
CISA KEVNot currently listed
Published2026-09-03
Last modified2026-09-10
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Description
Checkmate through 3.11.0 omits the isAllowed role guard middleware on maintenance-window, notification, and check-deletion routes, allowing read-only users to perform administrative actions. Attackers with user-role sessions can create arbitrary maintenance windows to silence alerts, modify notification channels, and delete monitor check history to erase incident evidence.
Weakness classification
- disclosure@vulncheck.com: CWE-862