How severe is CVE-2019-1003030?

CVE-2019-1003030 has a CVSS score of 9.9/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2019-1003030?

CVE-2019-1003030 affects the following packages: org.jenkins-ci.plugins.workflow:workflow-cps (Maven). Ecosystems affected: Maven.

How do I fix CVE-2019-1003030?

Update org.jenkins-ci.plugins.workflow:workflow-cps to 2.64 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-1003030 is resolved across your whole dependency graph.

How do I detect CVE-2019-1003030 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins.workflow:workflow-cps, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2019-1003030 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2019-1003030 actively exploited in the wild?

Yes. There are 5 known exploit references for CVE-2019-1003030, including 1 documented proof-of-concept exploit on Exploit-DB and 4 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2019-1003030?

CVE-2019-1003030 has an EPSS (Exploit Prediction Scoring System) score of 97.1%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2019-1003030 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2019-1003030 (Jenkins Matrix Project Plugin Remote Code Execution Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-03-25. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-04-15. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2019-1003030?

CVE-2019-1003030 is classified as CWE-693 (CWE-693). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for CVE-2019-1003030?

A Nuclei detection template exists for CVE-2019-1003030, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2019-1003030 published, and has it been updated?

CVE-2019-1003030 was published on March 8, 2019 and was last updated on October 24, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

CISA KEV · ACTIVELY EXPLOITED

CRITICAL severity

CVE-2019-1003030 — workflow-cps

CRITICAL

CVE-2019-1003030 is a critical-severity (CVSS 9.9) CWE-693 vulnerability in org.jenkins-ci.plugins.workflow:workflow-cps. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-03-25) — treat it as actively exploited and patch now. A fix is available for org.jenkins-ci.plugins.workflow:workflow-cps — see the affected versions and patch details below.

Sandbox bypass in Jenkins Pipeline: Groovy Plugin

Also known asGHSA-r6mc-mrvr-23cr

Published

Mar 8, 2019

Updated

Oct 24, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

5 known

Exploitation data as of Oct 24, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-03-25. Federal agencies were required to remediate by 2022-04-15.
A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2019-1003030.

EPSS Exploitation Probability

via FIRST.org ↗

97.1%probability of exploitation in next 30 days

Very High Risk0.00%

Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2019-1003030 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 395,249 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

☕org.jenkins-ci.plugins.workflow:workflow-cps

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jenkins-ci.plugins.workflow:workflow-cps`	all versions	2.64`org.jenkins-ci.plugins.workflow:workflow-cps:2.64`

Affected Products

2 products · 2 configurations

Application

pipeline\jenkins

≤ 2.63

1 version

_groovy

Application

openshift container platformredhat

1 version

3.11

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-48904webappsjava

Jenkins 2.63 - Sandbox bypass in pipeline: Groovy plug-in

by Daniel Morris · Oct 19, 2020

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins.workflow:workflow-cps, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jenkins-ci.plugins.workflow:workflow-cps to 2.64 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-1003030 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How to detect CVE-2019-1003030

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2019-1003030 -u https://target

Template: Jenkins Pipeline Groovy Plugin <=2.63 - Insecure Deserialization
Severity: critical
Impact: Low-privilege authenticated users (requiring only Overall/Read) can bypass the Groovy sandbox and execute arbitrary OS commands on the Jenkins controller. This leads to full CI/CD pipeline compromise: credential theft, SSH key extraction, arbitrary node execution, and supply chain attacks via poisoned build artifacts.
Remediation: 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.

Template by ProjectDiscovery nuclei-templates (princechaddha), MIT licensed. View the full template. Scan only systems you are authorised to test.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

Product	Fixed in	Advisory
Red Hat OpenShift Container Platform 3.11	`jenkins-2-plugins-0:3.11.1552336312-1.el7`	RHSA-2019:0739

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2019-1003030 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

9.9/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE Classification

Weaponization

Timeline

Disclosed

Mar 8, 2019

First exploit

Oct 19, 2020

KEV added

Mar 25, 2022

Last updated

Oct 24, 2026

Identifiers

CVE-2019-1003030

GHSA-r6mc-mrvr-23cr

References

Advisorysecurityfocus.com Advisoryaccess.redhat.com Advisoryjenkins.io Advisorynvd.nist.gov Webcisa.gov Webjenkins.io Packagegithub.com Evidencepacketstormsecurity.com

Related vulnerabilities

This CVE is critical severity; 1 of 8 other CVEs affecting workflow-cps is rated as high or higher (top: critical).

CVE-2024-52550CVE-2022-43404CVE-2022-43401CVE-2022-43402CVE-2020-2109CVE-2022-30945CVE-2018-1000866CVE-2017-1000096

Provenance

Sources

OSV.devNVDCISA KEVFIRST.org (EPSS)

Last verifiedOct 24, 2026

CVE-2019-1003030 — workflow-cps

Exploitation Status

Actively exploited in the wild

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

How to detect CVE-2019-1003030

Fixing This On Your OS

Frequently Asked Questions

Is CVE-2019-1003030 in your dependencies?