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Werk #17987: Fix Livestatus injection in autocomplete endpoint

Component REST API
Title Fix Livestatus injection in autocomplete endpoint
Date Jun 2, 2025
Level Trivial Change
Class Security Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.5.0b1
Not yet released 		Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p6 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.3.0p35
Not yet released 		Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p44 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Before this fix, the autocomplete endpoint did not properly validate its parameters, allowing a malicious, authenticated user to inject livestatus commands via the input.

This vulnerability was identified in a commissioned penetration test conducted by PS Positive Security GmbH.

Who's Affected:

This issue affects the REST API in all editions of Checkmk.

Affected Versions:

  • 2.4.0
  • 2.3.0
  • 2.2.0
  • 2.1.0 (EOL)

Vulnerability Management:

We have rated the issue with a CVSS score of 5.3 (Medium) with the following CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N, and assigned CVE-2025-32918.

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