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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-05-27

Last Modified

2026-05-28

Generated

2026-07-07

AI Q&A

2026-05-27

EPSS Evaluated

2026-07-05

NVD

CVE-2026-48921

EUVD

EUVD-2026-32512

Affected Vendors & Products

Vendor	Product	Version / Range
jenkins	pipeline	_groovy_libraries

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

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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