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CVE-2020-26217 PoC — Remote Code Execution in XStream

Source
Associated Vulnerability
Title:Remote Code Execution in XStream (CVE-2020-26217)
Description:XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.
Description
xstream with CVE-2020-26217
Readme
master: [![Build Status](https://travis-ci.org/x-stream/xstream.svg?branch=master)](https://travis-ci.org/x-stream/xstream) [![Coverage Status](https://coveralls.io/repos/github/x-stream/xstream/badge.svg?branch=master)](https://coveralls.io/github/x-stream/xstream?branch=master)  
v-1.4.x: [![Build Status](https://travis-ci.org/x-stream/xstream.svg?branch=v-1.4.x)](https://travis-ci.org/x-stream/xstream) [![Coverage Status](https://coveralls.io/repos/github/x-stream/xstream/badge.svg?branch=v-1.4.x)](https://coveralls.io/github/x-stream/xstream?branch=v-1.4.x)

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# XStream
_Java to XML Serialization, and back again_

## Binaries
All binary artifacts are bundled in the -bin archive.  It includes
the XStream jars and any other library used at build time, or
optional runtime extras.  Xpp3 is recommend for use as it will
greatly improve the performance of XStream.

## Documentation
Documentation can be found at [GitHub](http://x-stream.github.io).  This
includes:
* [Introduction](http://x-stream.github.io) and [Tutorials](http://x-stream.github.io/tutorial.html)
* [JavaDoc](http://x-stream.github.io/javadoc/index.html)
* [Change History](http://x-stream.github.io/changes.html)
* [Frequently Asked Questions](http://x-stream.github.io/faq.html)

## Source
The complete source for XStream is bundled in the -src archive.  This includes:
* Main API [xstream/src/java]
* Unit Tests [xstream/src/test]
* Maven Build Files [pom.xml]
* Hibernate Module [xstream-hibernate]
* Website [xstream-distribution]

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