Critical severityNVD Advisory· Published Nov 11, 2026· Updated Nov 11, 2026
CVE-2026-120495
CVE-2026-120495
Description
Path traversal in the Synthetic Monitoring "Robotmk" test service of Checkmk <2.5.0p19, <2.4.0p40, and 2.3.0 (EOL) allows an attacker who controls the agent output of a monitored host's check output for a host to inject a crafted robot output to define the contents and location for the generated HTML log, leading to code execution as the site user.
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Affected products
1Patches
Vulnerability mechanics
References
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