SnakeYaml — Vulnerabilities & Security Advisories 6

SnakeYAML is a Java-based YAML parser and emitter primarily used for data serialization and configuration management in enterprise applications. Historically, it has been vulnerable to remote code execution (RCE) due to unsafe deserialization of untrusted input, allowing attackers to execute arbitrary code. Other common vulnerabilities include cross-site scripting (XSS) and privilege escalation through crafted payloads. The library's permissive default parsing behavior enables unsafe Java object instantiation, leading to critical security incidents. With six CVEs on record, SnakeYAML remains a target for exploitation, particularly in applications processing untrusted YAML data without proper input validation or sandboxing.