CVE-2018-1999042: Jenkins

Medium severity, CVSS 5.3. EPSS: 1.5% chance of exploitation in the next 30 days.

A vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in XStream2.java that allows attackers to have Jenkins resolve a domain name when deserializing an instance of java.net.URL.

Affected products

• Jenkins Jenkins: up to and including 2.121.2; up to and including 2.137

Published 2018-08-23. Last modified 2026-06-17.