CVE-2021-39144GHSA-j9h8-phrw-h4fh
XStream Remote Code Execution Vulnerability
XStream XStreamMavenLibraries & packages
CVSS
8.5HighExploit odds (EPSS)98.1%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
CISA required actionApply updates per vendor instructions. CISA KEV
What fixes it
- 1.4.18com.thoughtworks.xstream:xstream, MavenOSV
<dependency><groupId>com.thoughtworks.xstream</groupId><artifactId>xstream</artifactId><version>1.4.18</version></dependency>
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Timeline
- 23 Aug 2021, 00:00 UTCPublishedCVE List
- 25 Oct 2022Exploit code publicMetasploit
- 10 Mar 2023Added to CISA KEVCISA KEV
Public exploit code and templates 2
- Exploit moduleVMware NSX Manager XStream unauthenticated RCE 25 Oct 2022Metasploit
- Scanner templateXStream 1.4.18 - Remote Code ExecutionNuclei
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
XStream contains a remote code execution vulnerability that allows an attacker to manipulate the processed input stream and replace or inject objects that result in the execution of a local command on the server. This vulnerability can affect multiple products, including but not limited to VMware Cloud Foundation.
Text from CVE List
Affected versions 44
- xstreamaffected: < 1.4.18CVE List
- com.thoughtworks.xstream:xstream, Mavenfrom first release, fixed in 1.4.18OSV
- com.thoughtworks.xstream:xstream, Maven0.1OSV
- com.thoughtworks.xstream:xstream, Maven0.2OSV
- com.thoughtworks.xstream:xstream, Maven0.3OSV
- com.thoughtworks.xstream:xstream, Maven0.5OSV
- com.thoughtworks.xstream:xstream, Maven0.6OSV
- com.thoughtworks.xstream:xstream, Maven1.0OSV
- com.thoughtworks.xstream:xstream, Maven1.0.1OSV
- com.thoughtworks.xstream:xstream, Maven1.0.2OSV
- com.thoughtworks.xstream:xstream, Maven1.1OSV
- com.thoughtworks.xstream:xstream, Maven1.1.1OSV
- com.thoughtworks.xstream:xstream, Maven1.1.2OSV
- com.thoughtworks.xstream:xstream, Maven1.1.3OSV
- com.thoughtworks.xstream:xstream, Maven1.2OSV
- com.thoughtworks.xstream:xstream, Maven1.2.1OSV
- com.thoughtworks.xstream:xstream, Maven1.2.2OSV
- com.thoughtworks.xstream:xstream, Maven1.3OSV
- com.thoughtworks.xstream:xstream, Maven1.3.1OSV
- com.thoughtworks.xstream:xstream, Maven1.4OSV
- com.thoughtworks.xstream:xstream, Maven1.4.1OSV
- com.thoughtworks.xstream:xstream, Maven1.4.10OSV
- com.thoughtworks.xstream:xstream, Maven1.4.10-java7OSV
- com.thoughtworks.xstream:xstream, Maven1.4.11OSV
- com.thoughtworks.xstream:xstream, Maven1.4.11-java7OSV
- com.thoughtworks.xstream:xstream, Maven1.4.11.1OSV
- com.thoughtworks.xstream:xstream, Maven1.4.12OSV
- com.thoughtworks.xstream:xstream, Maven1.4.12-java7OSV
- com.thoughtworks.xstream:xstream, Maven1.4.13OSV
- com.thoughtworks.xstream:xstream, Maven1.4.13-java7OSV
- com.thoughtworks.xstream:xstream, Maven1.4.14OSV
- com.thoughtworks.xstream:xstream, Maven1.4.14-java7OSV
- com.thoughtworks.xstream:xstream, Maven1.4.14-jdk7OSV
- com.thoughtworks.xstream:xstream, Maven1.4.15OSV
- com.thoughtworks.xstream:xstream, Maven1.4.16OSV
- com.thoughtworks.xstream:xstream, Maven1.4.17OSV
- com.thoughtworks.xstream:xstream, Maven1.4.2OSV
- com.thoughtworks.xstream:xstream, Maven1.4.3OSV
- com.thoughtworks.xstream:xstream, Maven1.4.4OSV
- com.thoughtworks.xstream:xstream, Maven1.4.5OSV
- com.thoughtworks.xstream:xstream, Maven1.4.6OSV
- com.thoughtworks.xstream:xstream, Maven1.4.7OSV
- com.thoughtworks.xstream:xstream, Maven1.4.8OSV
- com.thoughtworks.xstream:xstream, Maven1.4.9OSV
References 14
- vmware.com/security/advisories/VMSA-2022-0027.html, https://x-stream.github.io/CVE-2021-39144.htmlAdvisoryvia CISA KEV
- github.com/x-stream/xstream/security/advisories/GHSA-j9h8-phrw-h4fhAdvisoryvia CVE List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/Advisoryvia CVE List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/Advisoryvia CVE List
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/Advisoryvia CVE List
- debian.org/security/2021/dsa-5004Advisoryvia CVE List
- oracle.com/security-alerts/cpujan2022.htmlAdvisoryvia CVE List
- security.netapp.com/advisory/ntap-20210923-0003/Advisoryvia CVE List
- oracle.com/security-alerts/cpuapr2022.htmlAdvisoryvia CVE List
- oracle.com/security-alerts/cpujul2022.htmlAdvisoryvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2021-39144Referencevia CISA KEV
- x-stream.github.io/CVE-2021-39144.htmlReferencevia CVE List
- lists.debian.org/debian-lts-announce/2021/09/msg00017.htmlReferencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-39144Referencevia CVE List