Resolving CVE-2022-1471 With SnakeYAML 2.0

Date: 2025-02-17

SnakeYAML versions prior to 2.0 suffered from a critical vulnerability (CVE-2022-1471) allowing remote code execution via unsafe YAML deserialization. This flaw enabled attackers to execute arbitrary Java code by crafting malicious YAML input. SnakeYAML 2.0 mitigates this by defaulting to restricted deserialization, only allowing primitive types and basic collections unless explicitly whitelisted using LoaderOptions. Upgrading to SnakeYAML 2.0 and carefully configuring LoaderOptions to restrict allowed classes is crucial to prevent this vulnerability. Using SafeConstructor is another recommended approach.

Read more: https://www.javacodegeeks.com/spring-boot-snakeyaml-2-0-cve-2022-1471-issue-fixed.html