High (8.8) in jenkins groovy. EPSS 2.5% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.plugins:groovy 2.2.
A sandbox bypass vulnerability exists in Jenkins Groovy Plugin 2.1 and earlier in pom.xml, src/main/java/hudson/plugins/groovy/StringScriptSource.java that allows attackers with Overall/Read permission to execute arbitrary code on the Jenkins master JVM.
Severity
CVSS 3.1
8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)