CVE-2026-57284
Received Received - Intake
Jenkins Pipeline Groovy Plugin Type Instantiation Flaw

Publication date: 2026-06-24

Last updated on: 2026-06-24

Assigner: Jenkins Project

Description
Jenkins Pipeline: Groovy Plugin 4331.v9d06ed4658ff and earlier does not restrict the types that can be instantiated through the Pipeline Snippet Generator, allowing attackers to instantiate types related to job or system configuration other than Pipeline steps.
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Meta Information
Published
2026-06-24
Last Modified
2026-06-24
Generated
2026-06-24
AI Q&A
2026-06-24
EPSS Evaluated
N/A
NVD
CVE-2026-57284
EUVD
EUVD-2026-38764
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
jenkinsci groovy_plugin to 4331.v9d06ed4658ff (exc)
jenkinsci groovy_plugin to 4331.v9d06ed4658ff (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-470 The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.
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Executive Summary

This vulnerability exists in the Jenkins Pipeline Groovy Plugin version 4331.v9d06ed4658ff and earlier. It allows attackers to instantiate types related to job or system configuration through the Pipeline Snippet Generator without proper restrictions. Normally, only Pipeline steps should be instantiated, but this flaw permits broader access.

Impact Analysis

Because attackers can instantiate types related to job or system configuration, they may be able to manipulate Jenkins jobs or system settings in unauthorized ways. This could lead to unauthorized changes, potential disruption of CI/CD pipelines, or compromise of the Jenkins environment.

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