CVE-2022-1471: Snakeyaml Project Snakeyaml

Critical severity, CVSS 9.8. EPSS: 99.6% chance of exploitation in the next 30 days.

SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization. We recommend upgrading to version 2.0 and beyond.

Affected products

• Snakeyaml Project Snakeyaml: before 2.0 (fixed in 2.0)

Published 2022-12-01. Last modified 2026-06-17.