---
id: CVE-2026-48921
title: >-
  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 …
summary: >-
  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 …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-59
vendor: jenkins
product: 'pipeline:_groovy_libraries'
affected:
  - 'pipeline:_groovy_libraries < 798.v5cc688825312'
patched:
  - 'pipeline:_groovy_libraries 798.v5cc688825312'
published: '2026-05-27'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-48921'
references:
  - url: 'https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3727'
    label: jenkinsci-cert@googlegroups.com
tags:
  - nvd
epss: 0.00434
epssPercentile: 0.3613
ingestedAt: '2026-10-14T20:53:12.325Z'
---

## Overview

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.

## Affected

- `pipeline:_groovy_libraries < 798.v5cc688825312`

## Remediation

Upgrade past the affected range:

- `pipeline:_groovy_libraries 798.v5cc688825312`