CVE-2021-43859: Denial of Service by injecting highly recursive collections or maps in XStream

CVE-2021-43859 · Severity: low · CVSS 3.1 · Published 2022-02-01

Denial of Service by injecting highly recursive collections or maps in XStream

Technologies: com.thoughtworks.xstream:xstream (Maven). Vendors: Maven.

Quick answers

Is CVE-2021-43859 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-43859 being exploited in the wild.
How severe is CVE-2021-43859?
Low severity, with a CVSS score of 3.1, published 1 February 2022.
Which products and versions are affected?
com.thoughtworks.xstream:xstream (Maven) ECOSYSTEM:introduced=0,fixed=1.4.19.
Is there a fix for CVE-2021-43859?
Yes. com.thoughtworks.xstream:xstream (Maven): upgrade to 1.4.19 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-43859?
Check whether you run com.thoughtworks.xstream:xstream (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • com.thoughtworks.xstream:xstream (Maven): upgrade to 1.4.19 or later
    # set com.thoughtworks.xstream:xstream to 1.4.19 in your pom.xml or build.gradle

Affected products

  • com.thoughtworks.xstream:xstream (Maven) ECOSYSTEM:introduced=0,fixed=1.4.19

Identifiers

  • CVE-2021-43859
  • GHSA-rmr5-cpv2-vgjf

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