Rundeck plaintext storage vulnerability

Rundeck is an open source automation service with a Web console, command line tools and WebAPI from Rundeck, Inc. that is primarily used to run automation tasks. versions 4.2.0 and 4.2.1 of Rundeck contain a plaintext storage vulnerability that stems from not properly enabling the Key Storage Converter plug-in mechanism, which could be exploited by an attacker to cause the key The cryptographic layer of the storage does not work properly.