CVE-2022-48317: Checkmk

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Expired sessions were not securely terminated in the RestAPI for Tribe29's Checkmk <= 2.1.0p10 and Checkmk <= 2.0.0p28 allowing an attacker to use expired session tokens when communicating with the RestAPI.

Affected products

• Checkmk Checkmk: version 2.1.0 only; version 2.0.0 only

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