CVE-2021-39140

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service 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.

Affected products

Alt Linux, Astra Linux, Linuxmint, Red Hat, Suse, Ubuntu, Xstream

Xstream

< 1.4.18

CVSS 3.1

6.5 MEDIUM

EPSS

5.9% (92th percentile)

Weakness

CWE-835, CWE-502

NVD status

Analyzed

Published

2021-08-23

No exploit for CVE-2021-39140 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.