CVE-2023-31211: Checkmk

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Insufficient authentication flow in Checkmk before 2.2.0p18, 2.1.0p38 and 2.0.0p39 allows attacker to use locked credentials

Affected products

• Checkmk Checkmk: version 2.0.0 only; version 2.1.0 only; version 2.2.0 only
• TRIBE29 Checkmk: up to and including 2.0.0

Published 2024-01-12. Last modified 2026-06-17.