Exploited. On CISA's list since 2022-03-25.
Jenkins Matrix Project Plugin Remote Code Execution Vulnerability
CVE-2019-1003030 · Jenkins Matrix Project Plugin · Published 2019-03-08
How bad would it be?
9.9 out of 10
CVSS rates it critical: about as damaging as flaws get.
How likely is it to be used?
97%
Estimated chance of exploitation in the next 30 days, among the top 1% of all scored flaws (EPSS, 2026-10-29).
Is it already being used?
Yes
CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 1659 days ago (2022-04-15).
What CISA says to do
Apply updates per vendor instructions.
Jenkins Matrix Project plugin contains a vulnerability which can allow users to escape the sandbox, opening opportunity to perform remote code execution.
What the flaw is
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.
From the NVD.
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CWE-693 · NVD record: 134c704f-9b21-4f2e-91b3-4a467353bcc0. We have not selected a close learning match for this label.
CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.
On SentryFeed
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Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.