What’s Vulnerable › Vulnerabilities
CVE-2026-30829: Checkmate: Unauthenticated Access to Unpublished Status Page
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-03-07 · updated 2026-06-17
- Weakness: CWE-200
Description
Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. Prior to version 3.4.0, an unauthenticated information disclosure vulnerability exists in the GET /api/v1/status-page/:url endpoint. The endpoint does not enforce authentication or verify whether a status page is published before returning full status page details. As a result, unpublished status pages and their associated internal data are accessible to any unauthenticated user via direct API requests. This issue has been patched in version 3.4.0.
Affected products
- bluewave-labs Checkmate: before 3.4.0 — fixed in 3.4.0
How to fix
Upgrade to a fixed version: bluewave-labs Checkmate 3.4.0. Check the vendor advisory for mitigations.
References
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