CVE-2026-85390 - Checkmate through 3.11.0 Missing Authorization on Maintenance Window, Notification, and Check Deletion Routes

CVE-2026-85390 - Checkmate through 3.11.0 Missing Authorization on Maintenance Window, Notification, and Check Deletion Routes

https://cvefeed.io/rssfeed/latest.atom / Thu, 09/03/2026 - 22:30
CVE ID :CVE-2026-85390
Published : Sept. 3, 2026, 6:54 p.m. | 9 minutes ago
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.
Severity: 7.1 | HIGH
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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.