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.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Checkmk GmbH Checkmk unaffected
Version Status Constraints
2.5.0 affected < 2.5.0b4
2.4.0 affected < 2.4.0p26

No data.

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://checkmk.com/werk/17989 cve-icon cve-icon
History

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
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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Checkmk

Published:

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

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

Link: CVE-2026-33456

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-33456

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses