CVE-2026-33455: Checkmk

Medium severity, CVSS 6.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Livestatus injection in the monitoring quicksearch in Checkmk <2.5.0b4 allows an authenticated attacker to inject livestatus commands via the search query due to insufficient input sanitization in search filter plugins.

Affected products

• Checkmk Checkmk: version 2.5.0 only

Published 2026-04-10. Last modified 2026-06-17.