Jenkins Pipeline Groovy Plugin <=2.63 - Insecure Deserialization
CVE-2019-1003030
Verified
Description
Jenkins Pipeline: Groovy Plugin (workflow-cps) version 2.63 and earlier contains a sandbox bypass vulnerability in CpsGroovyShell.java. During parsing, compilation, and script instantiation of CPS-transformed pipeline scripts, sandbox protections are not applied, allowing authenticated users with Overall/Read permission to execute arbitrary code on the Jenkins controller JVM.
Severity
Critical
CVSS Score
9.9
Exploit Probability
97%
Affected Product
workflow-cps
Published Date
August 17, 2026
Template Author
princechaddha
CVE-2019-1003030.yaml
9.9Score
CVSS Metrics
CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVE ID:
cve-2019-1003030
CWE ID:
cwe-693
References
https://www.jenkins.io/security/advisory/2019-03-06/#SECURITY-1336https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1003030https://github.com/overgrowncarrot1/CVE-2019-1003030https://nvd.nist.gov/vuln/detail/CVE-2019-1003030http://packetstormsecurity.com/files/159603/Jenkins-2.63-Sandbox-Bypass.html
Remediation Steps
Upgrade Pipeline: Groovy Plugin (workflow-cps) to version 2.64 or later. If upgrading is not immediately possible, restrict Overall/Read access to trusted users only, or disable Pipeline job creation for untrusted users.