Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package xstream.src (opens in a new tab)

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27.31% (97^th percentile)

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Snyk IDSNYK-RHEL10-XSTREAMSRC-15340113
published25 Feb 2026
disclosed12 Mar 2021

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Introduced: 12 Mar 2021

CVE-2021-21341 (opens in a new tab) CWE-770 (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xstream.src package and not the xstream.src package as distributed by RHEL.

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.