CVE-2021-39147

XStream is a simple library to serialize objects to XML and back again. In affected versions this 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. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Score
CVSS 3.1 8.5 High
Status
Analyzed - security-advisories@github.com
Published
2021-08-23
Last modified
2026-10-07
Weaknesses
CWE-434, CWE-502

Affected products

References

 
 
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