VULNERABILITY INTELLIGENCE
CVE-2021-21345
CVSS score5.8 MEDIUM
EPSS probability72.32%
CISA KEVNot currently listed
Published2021-03-23
Last modified2026-10-07
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/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 who has sufficient rights to execute commands of the 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.
Weakness classification
- security-advisories@github.com: CWE-94
- nvd@nist.gov: CWE-78
Primary references
- security-advisories@github.com — Release Notes, Third Party Advisory
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Issue Tracking, Mailing List, Third Party Advisory
- security-advisories@github.com — Issue Tracking, Mailing List, Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Mailing List, Third Party Advisory
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Patch, Third Party Advisory