GHSA-8cvg-rxfw-4pf6HighCVSS 7.1
Checkmate through 3.11.0 omits the isAllowed role guard middleware on maintenance-window,...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-85390
- https://github.com/bluewave-labs/Checkmate/issues/3916
- https://github.com/bluewave-labs/Checkmate
- https://github.com/bluewave-labs/Checkmate/blob/v3.11.0/server/src/api/routes/checkRoutes.ts
- https://github.com/bluewave-labs/Checkmate/blob/v3.11.0/server/src/api/routes/maintenanceWindowRoutes.ts
- https://github.com/bluewave-labs/Checkmate/blob/v3.11.0/server/src/api/routes/notificationRoutes.ts
- https://www.vulncheck.com/advisories/checkmate-through-3.11.0-missing-authorization-on-maintenance-window-notification-and-check-deletion-routes
- https://github.com/advisories/GHSA-8cvg-rxfw-4pf6