Jenkins versions 2.56 and previous versions as well as 2.46.1 LTS and previous versions are vulnerable to an XStream: Java crash when trying to instantiate void/Void.
Jenkins uses the XStream library to serialize and deserialize XML Its maintainer recently published a security vulnerability that allows anyone able to provide XML to Jenkins for processing using XStream to crash the Java process In Jenkins this typically applies to users with permission to create or configure items (jobs), views, or agents
Jen ...