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Date: Mon, 29 Oct 2018 14:42:29 +0100
From: Daniel Beck <>
Subject: Script sandbox bypass in multiple Jenkins plugins

Jenkins is an open source automation server which enables developers around
the world to reliably build, test, and deploy their software. The following
releases contain fixes for security vulnerabilities:

* Pipeline: Groovy 2.60
* Script Security 1.48

Summaries of the vulnerabilities are below. More details, severity, and
attribution can be found here:

We provide advance notification for security updates on this mailing list:

If you discover security vulnerabilities in Jenkins, please report them as
described here:


The Groovy Sandbox library used by Script Security Plugin and Pipeline Groovy
Plugin did not apply sandbox restrictions to finalize methods. This could be
used to invoke arbitrary constructors and methods, bypassing sandbox

Finalize methods are now prohibited in classes subject to sandbox security.

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