Checkmk up to 2.2.0/2.3.0p48/2.4.0p33/2.5.0p8 Agent Plugin os command injection

Summaryinfo

A vulnerability categorized as very critical has been discovered in Checkmk up to 2.2.0/2.3.0p48/2.4.0p33/2.5.0p8. This impacts an unknown function of the component Agent Plugin. The manipulation results in os command injection. This vulnerability was named CVE-2026-14852. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability classified as very critical has been found in Checkmk up to 2.2.0/2.3.0p48/2.4.0p33/2.5.0p8. Affected is an unknown functionality of the component Agent Plugin. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Privilege escalation in Checkmk versions 2.5.0 before 2.5.0p9, 2.4.0 before 2.4.0p34, 2.3.0 before 2.3.0p49, and 2.2.0 (EOL) allows a local unprivileged user to execute arbitrary commands as root by starting a process crafted to look like a SAP HANA instance. Without an explicit database configuration, the mk_sap_hana agent plugin derives instance identifiers from the process list and uses them to build a command executed with elevated privileges (requires the plugin to run as root with RUNAS=agent).

The advisory is shared for download at checkmk.com. This vulnerability is traded as CVE-2026-14852 since 07/06/2026. The exploitability is told to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/14/2026). The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 2.3.0p49, 2.4.0p34 or 2.5.0p9 eliminates this vulnerability.

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Productinfo

Name

• Checkmk

Version

• 2.0
• 2.1
• 2.2.0
• 2.3.0p48
• 2.4.0p33
• 2.5.0p8

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