In Jenkins before versions 2.44, 2.32.2 low privilege users were able to override JDK download credentials (SECURITY-392), resulting in future builds possibly failing to download a JDK.
https://jenkins.io/security/advisory/2017-02-01/
https://github.com/jenkinsci/jenkins/commit/a814154695e23dc37542af7d40cacc129cf70722