CVE-2026-48921
Received Received - Intake
Jenkins Groovy Libraries Plugin Path Traversal Vulnerability

Publication date: 2026-05-27

Last updated on: 2026-05-28

Assigner: Jenkins Project

Description
Jenkins Pipeline: Groovy Libraries Plugin 797.v90ea_a_9b_e45a_0 and earlier does not prohibit symbolic links in shared libraries, allowing attackers able to control the content of a library used by a Pipeline job to read arbitrary files on the Jenkins controller filesystem.
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Meta Information
Published
2026-05-27
Last Modified
2026-05-28
Generated
2026-06-16
AI Q&A
2026-05-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-48921
EUVD
EUVD-2026-32512
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
jenkins pipeline _groovy_libraries
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-59 The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
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Executive Summary

This vulnerability exists in the Jenkins Pipeline: Groovy Libraries Plugin version 797.v90ea_a_9b_e45a_0 and earlier. It does not prohibit the use of symbolic links in shared libraries. As a result, attackers who can control the content of a library used by a Pipeline job can exploit this to read arbitrary files on the Jenkins controller filesystem.

Impact Analysis

An attacker able to control a library used by a Jenkins Pipeline job can leverage this vulnerability to read arbitrary files on the Jenkins controller filesystem. This could lead to unauthorized access to sensitive information stored on the controller, potentially compromising the security and integrity of the Jenkins environment.

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