---
id: "CVE-2019-1003029"
kind: "vulnerability"
aliases: ["CVE-2019-1003029"]
title: "Jenkins Script Security Plugin: Jenkins Script Security Plugin Sandbox Bypass Vulnerability"
severity: "critical"
cvss: 9.9
epss: 0.7444
exploited: true
status: "open"
category: "package"
products: [{"name": "Jenkins Script Security Plugin", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "groovy", "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-2019-1003029", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-1003029", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1003029", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Jenkins Script Security Plugin: Jenkins Script Security Plugin Sandbox Bypass Vulnerability

The Jenkins Script Security Plugin has a sandbox bypass that lets a user run code outside the sandbox that is meant to contain Groovy scripts. An attacker who can submit scripts to Jenkins 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 Script Security Plugin affected ? fixed ?

## How to check

Check the installed version of the Script Security plugin in Manage Jenkins > Plugins > Installed; unknown for the exact affected range from these sources.

## Fix

Update the Script Security Plugin to the fixed version per Jenkins security advisory; unknown exact fixed version from these sources.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-1003029
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2019-1003029
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2019-1003029

## From the sources

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.

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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_