cvedb.io
CVE-2021-39152
HIGH · CVSS 8.5
EPSS exploitation probability: 0%
Published 2021-08-23T19:15:13.247 · Last modified 2026-06-17T04:03:12.073

Summary

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.

Affected products

xstream — xstream

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.