CVE-2026-92128: Jenkins Script Security Plugin vulnerability
Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier downloads a JAR file specified by URL twice, confirming the approval of the first download and loading the classpath entries from the second, allowing attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker must be able to define classpath entries used by the Jenkins Script Security Plugin. Successful exploitation can execute arbitrary code in the context of the Jenkins controller JVM.
What versions are affected?
Jenkins Script Security Plugin version 1415.v9a_f9b_3a_c253d and earlier are affected.
What is the underlying approval bypass?
The plugin downloads a JAR from the specified URL twice. It confirms approval for the first download but loads classpath entries from the second download, allowing the approved content to differ from the content ultimately loaded.