CVE-2020-2279: Jenkins Script Security

Critical severity, CVSS 9.9. EPSS: 2.1% chance of exploitation in the next 30 days.

A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.74 and earlier allows attackers with permission to define sandboxed scripts to provide crafted return values or script binding content that can result in arbitrary code execution on the Jenkins controller JVM.

Affected products

• Jenkins Script Security: up to and including 1.74

Published 2020-09-23. Last modified 2026-06-17.