CVE-2021-21344
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulne
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 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.
MEDIUM · CVSS 5.3
EPSS 0.30602
Schedule remediation
- EPSS ≥ 0.10 - elevated exploitation probability
- EPSS percentile: top 3% of all CVEs by exploitation likelihood
- Public exploit or PoC is available
Sigma rules0
YARA rules0