CVE-2021-39147 HIGH

CVE-2021-39147: XStream is vulnerable to an Arbitrary Code Execution attack

Vendor X-Stream
Product xstream
Weakness CWE-434 · Unrestricted file upload
Published August 23, 2021
Last update August 4, 2024

CVSS base score

8.5/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 23, 2021 CVE published
August 4, 2024 Record updated

Related vulnerabilities

04Related CVE