CVE-2026-33456 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Checkmk	Checkmk

No data.

No data.

References

Link	Providers
https://checkmk.com/werk/17989

History

Fri, 10 Apr 2026 13:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 10 Apr 2026 08:45:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		Potential livestatus injection in notification test
First Time appeared		Checkmk Checkmk checkmk
Weaknesses		CWE-140
CPEs		cpe:2.3:a:checkmk:checkmk::::::::
Vendors & Products		Checkmk Checkmk checkmk
References		https://checkmk.com/werk/17989
Metrics		cvssV4_0 `{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: Checkmk

Published: 2026-04-10T08:31:27.807Z

Updated: 2026-04-10T12:47:50.407Z

Reserved: 2026-03-20T10:30:13.353Z

Link: CVE-2026-33456

Vulnrichment

Updated: 2026-04-10T12:47:46.627Z

NVD

Status : Received

Published: 2026-04-10T09:16:24.493

Modified: 2026-04-10T09:16:24.493

Link: CVE-2026-33456

Redhat

No data.

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