TI-2026-19419 Aliases CVE-2026-24095 GHSA-2wv3-wwxg-29gh

Missing Permission Check on Analyze Configuration Page

LOW 24CWE-862Published 2026-02-09 · Updated 2026-02-09

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p21, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows users with the "Use WATO" permission to access the "Analyze configuration" page by directly navigating to its URL, bypassing the intended "Access analyze configuration" permission check. If these users also have the "Make changes, perform actions" permission, they can perform unauthorized actions such as disabling checks or acknowledging results.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00273 19th percentileScored 2026-11-07

Fix Fixed Checkmk (Checkmk GmbH): 2.4.0p21, 2.3.0p43

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Checkmk GmbH	Checkmk	2.4.0 to before 2.4.0p21; 2.3.0 to before 2.3.0p43; 2.2.0	2.4.0p21, 2.3.0p43	Patch available	CNA

Checkmk VendorCheckmk GmbH Affected 2.4.0 to before 2.4.0p21; 2.3.0 to before 2.3.0p43; 2.2.0 Fixed in 2.4.0p21, 2.3.0p43 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:checkmk:checkmk::::::::	—	—	Checkmk GmbH

cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:* Versions — — ·Checkmk GmbH

Remediation

Fix · CNA Checkmk (Checkmk GmbH) Fixed in 2.4.0p21, 2.3.0p43

Timeline

2026-10-02 Threatist record created from CVE-2026-24095
2026-10-03 Alias added: GHSA-2wv3-wwxg-29gh

References

Other 1

https://checkmk.com/werk/19032

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-2024-12762 Checkmk NagVis Remote Code Execution CVSS 3.1HIGH 7.2
TI-2024-12761 Checkmk NagVis Reflected Cross-site Scripting CVSS 3.1MEDIUM 5.4
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

See all 128 →

Sources

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