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TI-2026-23658 Aliases CVE-2026-30829

Checkmate: Unauthenticated Access to Unpublished Status Page

Priority MEDIUM 63CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

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 As a result, unpublished status pages and their associated internal data are accessible to any unauthenticated user via direct API requests.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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00435 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Checkmate (bluewave-labs): 3.4.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
bluewave-labsCheckmatebefore 3.4.03.4.0Patch availableCNA
  • Checkmate Vendorbluewave-labs Affected before 3.4.0 Fixed in 3.4.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:bluewavelabs:checkmate:*:*:*:*:*:*:*:*before 3.4.0Vulnerablebluewave-labs
  • cpe:2.3:a:bluewavelabs:checkmate:*:*:*:*:*:*:*:* Versions before 3.4.0 Vulnerable ·bluewave-labs

Remediation

  • Fix · CNA Checkmate (bluewave-labs) Fixed in 3.4.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30829

References

Exploit 1

  • TI-2026-24389 Mass Assignment Privilege Escalation in Checkmate CVSS 3.1HIGH 8.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences