VULNERABILITY INTELLIGENCE

CVE-2021-21350

CVSS score5.3 MEDIUM
EPSS probability15.23%
CISA KEVNot currently listed
Published2021-03-23
Last modified2026-10-07
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Description

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to execute arbitrary code 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.

Weakness classification

  • security-advisories@github.com: CWE-434
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references