CVE-2023-51389: Apache Hertzbeat

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Hertzbeat is a real-time monitoring system. At the interface of `/define/yml`, SnakeYAML is used as a parser to parse yml content, but no security configuration is used, resulting in a YAML deserialization vulnerability. Version 1.4.1 fixes this vulnerability.

Affected products

• Apache Hertzbeat: before 1.4.1 (fixed in 1.4.1)

Published 2024-02-22. Last modified 2026-06-17.