CVE-2021-39152

Published: 23 August 2021

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream with a Java runtime version 14 to 8. 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](https://x-stream.github.io/security.html#framework), you will have to use at least version 1.4.18.

Priority

Medium

CVSS 3 base score: 8.5

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39152
• https://github.com/x-stream/xstream/security/advisories/GHSA-xw4p-crpj-vjx2
• https://x-stream.github.io/CVE-2021-39152.html
• NVD
• Launchpad
• Debian