Jenkins before versions 2.44, 2.32.2 is vulnerable to a user data leak in disconnected agents' config.xml API. This could leak sensitive data such as API tokens (SECURITY-362).
https://jenkins.io/security/advisory/2017-02-01/
https://github.com/jenkinsci/jenkins/commit/3cd946cbef82c6da5ccccf3890d0ae4e091c4265