Read the docs
TI-2025-35945 Aliases CVE-2025-58121GHSA-4qrg-gphx-m2ch

Insufficient permission validation on multiple REST API endpoints

Priority LOW 23CWE-280Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version 2.4.0p16 allows low-privileged users to perform unauthorized actions or obtain sensitive information

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00214 11th percentileScored 2026-11-07
Fix Fixed Checkmk (Checkmk GmbH): 2.4.0p16

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
Checkmk GmbHCheckmk2.4.0 to before 2.4.0p16; 2.3.0; 2.2.02.4.0p16Patch availableCNA
  • Checkmk VendorCheckmk GmbH Affected 2.4.0 to before 2.4.0p16; 2.3.0; 2.2.0 Fixed in 2.4.0p16 Patch available CNA

CPE configurations NVD · 23

CPEVersionsRoleVendor
cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*2.2.0 to before 2.4.0VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:-:*:*:*:*:*:*2.4.0VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:b1:*:*:*:*:*:*2.4.0 b1VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:b2:*:*:*:*:*:*2.4.0 b2VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:b3:*:*:*:*:*:*2.4.0 b3VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:b4:*:*:*:*:*:*2.4.0 b4VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:b5:*:*:*:*:*:*2.4.0 b5VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:b6:*:*:*:*:*:*2.4.0 b6VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p1:*:*:*:*:*:*2.4.0 p1VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p10:*:*:*:*:*:*2.4.0 p10VulnerableCheckmk GmbH
  • cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* Versions 2.2.0 to before 2.4.0 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:-:*:*:*:*:*:* Versions 2.4.0 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:b1:*:*:*:*:*:* Versions 2.4.0 b1 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:b2:*:*:*:*:*:* Versions 2.4.0 b2 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:b3:*:*:*:*:*:* Versions 2.4.0 b3 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:b4:*:*:*:*:*:* Versions 2.4.0 b4 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:b5:*:*:*:*:*:* Versions 2.4.0 b5 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:b6:*:*:*:*:*:* Versions 2.4.0 b6 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p1:*:*:*:*:*:* Versions 2.4.0 p1 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p10:*:*:*:*:*:* Versions 2.4.0 p10 Vulnerable ·Checkmk GmbH
Show 13 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:checkmk:checkmk:2.4.0:p11:*:*:*:*:*:*2.4.0 p11VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p12:*:*:*:*:*:*2.4.0 p12VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p13:*:*:*:*:*:*2.4.0 p13VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p14:*:*:*:*:*:*2.4.0 p14VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p15:*:*:*:*:*:*2.4.0 p15VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p2:*:*:*:*:*:*2.4.0 p2VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p3:*:*:*:*:*:*2.4.0 p3VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p4:*:*:*:*:*:*2.4.0 p4VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p5:*:*:*:*:*:*2.4.0 p5VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p6:*:*:*:*:*:*2.4.0 p6VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p7:*:*:*:*:*:*2.4.0 p7VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p8:*:*:*:*:*:*2.4.0 p8VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p9:*:*:*:*:*:*2.4.0 p9VulnerableCheckmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p11:*:*:*:*:*:* Versions 2.4.0 p11 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p12:*:*:*:*:*:* Versions 2.4.0 p12 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p13:*:*:*:*:*:* Versions 2.4.0 p13 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p14:*:*:*:*:*:* Versions 2.4.0 p14 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p15:*:*:*:*:*:* Versions 2.4.0 p15 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p2:*:*:*:*:*:* Versions 2.4.0 p2 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p3:*:*:*:*:*:* Versions 2.4.0 p3 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p4:*:*:*:*:*:* Versions 2.4.0 p4 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p5:*:*:*:*:*:* Versions 2.4.0 p5 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p6:*:*:*:*:*:* Versions 2.4.0 p6 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p7:*:*:*:*:*:* Versions 2.4.0 p7 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p8:*:*:*:*:*:* Versions 2.4.0 p8 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p9:*:*:*:*:*:* Versions 2.4.0 p9 Vulnerable ·Checkmk GmbH

Remediation

  • Fix · CNA Checkmk (Checkmk GmbH) Fixed in 2.4.0p16

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Checkmk 2.4.0p16

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2025-35946 Insufficient permission validation when configuring notification parametersPriority LOW 23
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-58121
  2. 2026-10-03 Alias added: GHSA-4qrg-gphx-m2ch

References

Advisory 1

  • TI-2025-26345 Cross Site Scripting through compromised remote site CVSS 4.0HIGH 8.5
  • TI-2025-40190 Cross-site scripting in HTML logs of Synthetic Monitoring test services CVSS 4.0HIGH 7.3
  • TI-2024-19037 Brute-force protection ineffective for some login methods CVSS 3.1CRITICAL 9.8
  • TI-2024-05712 local IP restriction of internal HTTP endpoints CVSS 3.1CRITICAL 9.8
  • TI-2021-17818 The web management console of CheckMK Enterprise Edition (versions 1.5.0 to 2.0.0p9) does… CVSS 3.1HIGH 8.8
  • TI-2021-17817 The web management console of CheckMK Raw Edition (versions 1.5.0 to 1.6.0) allows a… CVSS 3.1HIGH 8.8
See all 107 →

Sources

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