CVE-2026-85390Checkmate through 3.11.0 Missing Authorization on Maintenance Window, Notification, and Check Deletion Routes
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 5, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
bluewave-labs Checkmate bluewave_labs:checkmate (from the name) | through 3.11.0 | CNA record |
References
- https://github.com/bluewave-labs/Checkmate/issues/3916issue-tracking
- https://github.com/bluewave-labs/Checkmateproduct
- https://github.com/bluewave-labs/Checkmate/blob/v3.11.0/server/src/api/routes/maintenanceWindowRoutes.tstechnical-description
- https://github.com/bluewave-labs/Checkmate/blob/v3.11.0/server/src/api/routes/notificationRoutes.tstechnical-description
- https://github.com/bluewave-labs/Checkmate/blob/v3.11.0/server/src/api/routes/checkRoutes.tstechnical-description
- https://www.vulncheck.com/advisories/checkmate-through-3.11.0-missing-authorization-on-maintenance-window-notification-and-check-deletion-routesthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.