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CVE-2019-1003029 — A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier…

Key facts

CVE-2019-1003029 is a Critical (9.9) vulnerability: A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-04-25), confirming active exploitation in the wild.

Actively exploited — on the CISA KEV catalog

CVE-2019-1003029 is listed on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-04-25), confirming exploitation in the wild. Federal remediation deadline: 2022-05-16. Prioritise patching and deploy the detection and prevention rules below.
CVE CVE-2019-1003029
Severity Critical (9.9)
CISA KEV Actively exploited (added 2022-04-25)
Detection / prevention —
PoC poc.py
Source 2019/CVE-2019-1003029/

Details

English | 한국어

Description

A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier in src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/GroovySandbox.java, src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/SecureGroovyScript.java that allows attackers with Overall/Read permission to execute arbitrary code on the Jenkins master JVM.

Vulnerability Details

Property Value
CVE ID CVE-2019-1003029
CVSS Score 9.9

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2019/CVE-2019-1003029/poc.py

Usage

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start

# Clone and navigate to CVE directory
cd CVE-2019-1003029

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints

Application URL Status
Vulnerable App http://localhost:8080 Shows vulnerability
Patched App http://localhost:8081 Demonstrates fix

Directory Structure

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References

  • http://packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.html
  • http://www.securityfocus.com/bid/107476
  • https://access.redhat.com/errata/RHSA-2019:0739
  • https://jenkins.io/security/advisory/2019-03-06/#SECURITY-1336%20%281%29
  • http://packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.html
  • http://www.securityfocus.com/bid/107476
  • https://access.redhat.com/errata/RHSA-2019:0739
  • https://jenkins.io/security/advisory/2019-03-06/#SECURITY-1336%20%281%29
  • https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1003029

Generated by PoC Generator on 2026-06-24T14:32:17.424967982

Frequently asked questions

What is CVE-2019-1003029?

CVE-2019-1003029 is a Critical (9.9) vulnerability: A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-04-25), confirming active exploitation in the wild.

How do I detect CVE-2019-1003029?

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2019-1003029?

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

Is CVE-2019-1003029 actively exploited?

Yes. CVE-2019-1003029 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2022-04-25, which means it has been exploited in the wild. CISA set a federal remediation deadline of 2022-05-16. Prioritise patching and deploy the detection and prevention rules above.

For authorized security testing and research only. See the full source and NVD record.