VYPR
High severityNVD Advisory· Published Aug 23, 2021· Updated Aug 4, 2024

XStream is vulnerable to an Arbitrary Code Execution attack

CVE-2021-39139

Description

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. A user is only affected if using the version out of the box with JDK 1.7u21 or below. However, this scenario can be adjusted easily to an external Xalan that works regardless of the version of the Java runtime. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
com.thoughtworks.xstream:xstreamMaven
< 1.4.181.4.18

Affected products

9

Patches

Vulnerability mechanics

References

17

News mentions

0

No linked articles in our index yet.