CVE-2021-39145

XStream is vulnerable to an Arbitrary Code Execution attack

Published Aug 23, 2021 CVSS 3.1 · 8.5 High EPSS 4.1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-2769-1 libxstream-java security update
Debian DSA Debian DSA DSA-5004-1 libxstream-java security update
EUVD EUVD EUVD-2021-1642 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.
Github GHSA Github GHSA GHSA-8jrj-525p-826v XStream is vulnerable to an Arbitrary Code Execution attack
Ubuntu USN Ubuntu USN USN-5946-1 XStream vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Xstream
Xstream xstream
CPEs cpe:2.3:a:xstream_project:xstream:*:*:*:*:*:*:*:* cpe:2.3:a:xstream:xstream:*:*:*:*:*:*:*:*
Vendors & Products Xstream Project
Xstream Project xstream
Xstream
Xstream xstream
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 7, 2026, 7:57 PM
Reserved
Aug 16, 2021, 12:00 AM
Status
Analyzed
Published
Aug 23, 2021, 6:15 PM
Modified
Oct 7, 2026, 8:17 PM
Severity
Important
Public date
Aug 22, 2021, 12:00 AM