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TI-2026-25852 Aliases CVE-2026-33456GHSA-hxwv-vc7p-p66g

Potential livestatus injection in notification test

Priority LOW 25CWE-140Published · Updated

Key facts

Attack vector
Network
Privileges required
High
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

Livestatus injection in the notification test mode in Checkmk <2.5.0b4 and <2.4.0p26 allows an authenticated user with access to the notification test page to inject arbitrary Livestatus commands via a crafted service description.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.002 9th percentileScored 2026-11-07
Fix Fixed Checkmk (Checkmk GmbH): 2.5.0b4, 2.4.0p26

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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 GmbHCheckmk2.5.0 to before 2.5.0b4; 2.4.0 to before 2.4.0p262.5.0b4, 2.4.0p26Patch availableCNA
  • Checkmk VendorCheckmk GmbH Affected 2.5.0 to before 2.5.0b4; 2.4.0 to before 2.4.0p26 Fixed in 2.5.0b4, 2.4.0p26 Patch available CNA

CPE configurations NVD · 35

CPEVersionsRoleVendor
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:2.4.0:p11:*:*:*:*:*:*2.4.0 p11VulnerableCheckmk 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
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p11:*:*:*:*:*:* Versions 2.4.0 p11 Vulnerable ·Checkmk GmbH
Show 25 more CPE
CPEVersionsRoleVendor
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:p16:*:*:*:*:*:*2.4.0 p16VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p17:*:*:*:*:*:*2.4.0 p17VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p18:*:*:*:*:*:*2.4.0 p18VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p19:*:*:*:*:*:*2.4.0 p19VulnerableCheckmk 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:p20:*:*:*:*:*:*2.4.0 p20VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p21:*:*:*:*:*:*2.4.0 p21VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p22:*:*:*:*:*:*2.4.0 p22VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p23:*:*:*:*:*:*2.4.0 p23VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p24:*:*:*:*:*:*2.4.0 p24VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.4.0:p25:*:*:*:*:*:*2.4.0 p25VulnerableCheckmk 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:2.5.0:b1:*:*:*:*:*:*2.5.0 b1VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.5.0:b2:*:*:*:*:*:*2.5.0 b2VulnerableCheckmk GmbH
cpe:2.3:a:checkmk:checkmk:2.5.0:b3:*:*:*:*:*:*2.5.0 b3VulnerableCheckmk 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:p16:*:*:*:*:*:* Versions 2.4.0 p16 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p17:*:*:*:*:*:* Versions 2.4.0 p17 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p18:*:*:*:*:*:* Versions 2.4.0 p18 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p19:*:*:*:*:*:* Versions 2.4.0 p19 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:p20:*:*:*:*:*:* Versions 2.4.0 p20 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p21:*:*:*:*:*:* Versions 2.4.0 p21 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p22:*:*:*:*:*:* Versions 2.4.0 p22 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p23:*:*:*:*:*:* Versions 2.4.0 p23 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p24:*:*:*:*:*:* Versions 2.4.0 p24 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.4.0:p25:*:*:*:*:*:* Versions 2.4.0 p25 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
  • cpe:2.3:a:checkmk:checkmk:2.5.0:b1:*:*:*:*:*:* Versions 2.5.0 b1 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.5.0:b2:*:*:*:*:*:* Versions 2.5.0 b2 Vulnerable ·Checkmk GmbH
  • cpe:2.3:a:checkmk:checkmk:2.5.0:b3:*:*:*:*:*:* Versions 2.5.0 b3 Vulnerable ·Checkmk GmbH

Remediation

  • Fix · CNA Checkmk (Checkmk GmbH) Fixed in 2.5.0b4, 2.4.0p26

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33456
  2. 2026-10-03 Alias added: GHSA-hxwv-vc7p-p66g

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