CVE-2019-16538: Jenkins Script Security

High severity, CVSS 8.8. EPSS: 1.4% chance of exploitation in the next 30 days.

A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.67 and earlier related to the handling of default parameter expressions in closures allowed attackers to execute arbitrary code in sandboxed scripts.

Affected products

• Jenkins Script Security: up to and including 1.67

Published 2019-11-21. Last modified 2026-06-17.