---
id: "CVE-2019-1003030"
kind: "vulnerability"
aliases: ["CVE-2019-1003030"]
title: "Jenkins Matrix Project Plugin: Jenkins Matrix Project Plugin Remote Code Execution Vulnerability"
severity: "critical"
cvss: 9.9
epss: 0.97058
exploited: true
status: "open"
category: "package"
products: [{"name": "Jenkins Matrix Project Plugin", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["ci-cd", "exploited", "jenkins", "package", "self-hosted"]
not_affected_if: ["plugin-not-installed"]
published_at: "2019-03-08T21:29:00+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T21:57:35+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-1003030", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-1003030", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1003030", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Jenkins Matrix Project Plugin: Jenkins Matrix Project Plugin Remote Code Execution Vulnerability

The Jenkins Matrix Project Plugin lets a user escape the Groovy sandbox that is meant to restrict scripts. A user who escapes it can run arbitrary code on the Jenkins controller.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Jenkins Matrix Project Plugin affected ? fixed ?

## How to check

Check the installed version of the Matrix Project plugin in Jenkins under Manage Jenkins > Plugins > Installed; the sources do not give the affected version range.

## Fix

Update the Matrix Project plugin to the fixed version named in the vendor advisory; the sources do not name the version.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-1003030
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2019-1003030
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2019-1003030

## From the sources

A sandbox bypass vulnerability exists in Jenkins Pipeline: Groovy Plugin 2.63 and earlier in pom.xml, src/main/java/org/jenkinsci/plugins/workflow/cps/CpsGroovyShell.java that allows attackers able to control pipeline scripts to execute arbitrary code on the Jenkins master JVM.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_