CVE-2026-85390

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Source
https://cve.org/CVERecord?id=CVE-2026-85390
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85390.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-85390
Published
2026-09-03T18:54:23Z
Modified
2026-09-12T03:30:18Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Checkmate through 3.11.0 Missing Authorization on Maintenance Window, Notification, and Check Deletion Routes
Details

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.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-862"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85390.json"
}
References

Affected packages

Git / github.com/bluewave-labs/checkmate

Affected ranges

Type
GIT
Repo
https://github.com/bluewave-labs/checkmate
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
021f99e0beb2842bd8ea9d434d93ea50bb9e4aa4
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "3.11.0"
        },
        {
            "fixed":  "3.11.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

v1.*
v1.0
v1.1.0
v2.*
v2.0.1
v2.0.2
v2.1
v2.2
v2.3
v3.*
v3.1
v3.1-beta
v3.1.1
v3.1.2
v3.1.3
v3.1.4
v3.1.5
v3.1.6
v3.1.8
v3.2.0
v3.3
v3.4.0
v3.5.0
v3.5.1
v3.6.1
v3.7.1
v3.9.1
v3.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85390.json"