CVE-2026-120495
Arbitrary file write and code execution via crafted Synthetic Monitoring agent data
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-23 |
| Vendor | checkmk gmbh |
| Product | checkmk |
| Published | Nov 11, 2026 |
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Affected Versions
Checkmk GmbH / Checkmk
2.5.0 < 2.5.0p19 2.4.0 < 2.4.0p40 2.3.0