---
id: CVE-2026-84645
title: >-
  In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked
  as storing their configuration in independent top-level configuration files in
  Jenkins (such as the global configuration and jobs) can appear as nested field
  …
summary: >-
  In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked
  as storing their configuration in independent top-level configuration files in
  Jenkins (such as the global configuration and jobs) can appear as nested field
  …
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
  - CWE-915
vendor: jenkins
product: jenkins
affected:
  - jenkins < 2.568.3
  - jenkins < 2.580
patched:
  - jenkins 2.580
published: '2026-09-02'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T21:15:29.510'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84645'
references:
  - url: 'https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3972'
    label: jenkinsci-cert@googlegroups.com
tags:
  - nvd
  - cve.org
  - exploit-available
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-02T00:00:00+00:00'
ingestedAt: '2026-09-13T19:02:14.754Z'
epss: 0.0079
epssPercentile: 0.54468
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/mhtsec/CVE-2026-84645'
  checkedAt: '2026-09-27T10:34:03.129Z'
exploitAvailable: true
---

## Overview

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, objects of types marked as storing their configuration in independent top-level configuration files in Jenkins (such as the global configuration and jobs) can appear as nested field values in user-submitted `config.xml` documents and subsequently handle HTTP requests via Stapler, resulting in remote code execution.

## Affected

- `jenkins < 2.568.3`
- `jenkins < 2.580`

## Remediation

Upgrade past the affected range:

- `jenkins 2.580`