CVE-2022-47909: Checkmk

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Livestatus Query Language (LQL) injection in the AuthUser HTTP query header of Tribe29's Checkmk <= 2.1.0p11, Checkmk <= 2.0.0p28, and all versions of Checkmk 1.6.0 (EOL) allows an attacker to perform direct queries to the application's core from localhost.

Affected products

• Checkmk Checkmk: version 2.1.0 only; version 2.0.0 only; version 1.6.0 only

Published 2023-02-20. Last modified 2026-06-17.