XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host 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.
CVSS Details
- CVSS 3.1 Base Score: 5.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-xstreamamazon-linux-ami-2-upgrade-xstream-javadoc | Jan 9, 2024 | Mar 23, 2021 | |
| Debian | debian-upgrade-libxstream-java | Apr 5, 2021 | Mar 23, 2021 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | Mar 23, 2021 |
| Suse | — | suse-upgrade-xstreamsuse-upgrade-xstream-benchmarksuse-upgrade-xstream-javadocsuse-upgrade-xstream-parent | Jun 3, 2021 | Mar 23, 2021 |
| Ubuntu | ubuntu-pro-upgrade-libxstream-javaubuntu-upgrade-libxstream-java | May 12, 2021 | Mar 23, 2021 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub