---
id: CVE-2026-70428
title: >-
  Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file
  paths attempting path traversal in file parameter names, allowing attackers
  with Item/Configure and Item/Build permission to write files to arbitrary
  locations…
summary: >-
  Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file
  paths attempting path traversal in file parameter names, allowing attackers
  with Item/Configure and Item/Build permission to write files to arbitrary
  locations…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-22
vendor: jenkins
product: jenkins
affected:
  - jenkins < 2.568.2
  - jenkins < 2.576
patched:
  - jenkins 2.576
published: '2026-08-05'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:15:13.700'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-70428'
references:
  - url: 'https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3927'
    label: jenkinsci-cert@googlegroups.com
tags:
  - nvd
epss: 0.00323
epssPercentile: 0.25529
ingestedAt: '2026-09-08T21:11:12.268Z'
---

## Overview

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal in file parameter names, allowing attackers with Item/Configure and Item/Build permission to write files to arbitrary locations on the controller file system.

## Affected

- `jenkins < 2.568.2`
- `jenkins < 2.576`

## Remediation

Upgrade past the affected range:

- `jenkins 2.576`