---
id: CVE-2026-84653
title: >-
  Jenkins 2.421 through 2.579 (both inclusive), LTS 2.426.1 through 2.568.2
  (both inclusive) does not correctly perform permission checks in the
  Appearance configuration page, allowing attackers with Overall/Manage
  permission to modify App…
summary: >-
  Jenkins 2.421 through 2.579 (both inclusive), LTS 2.426.1 through 2.568.2
  (both inclusive) does not correctly perform permission checks in the
  Appearance configuration page, allowing attackers with Overall/Manage
  permission to modify App…
severity: low
cvss: 3.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-862
vendor: jenkins
product: jenkins
affected:
  - 'jenkins >= 2.421, <= 2.579'
  - 'jenkins >= 2.426.1, <= 2.568.2'
published: '2026-09-02'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T18:15:37.527'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84653'
references:
  - url: 'https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3981'
    label: jenkinsci-cert@googlegroups.com
tags:
  - nvd
epss: 0.00272
epssPercentile: 0.19832
ingestedAt: '2026-09-15T18:41:59.124Z'
---

## Overview

Jenkins 2.421 through 2.579 (both inclusive), LTS 2.426.1 through 2.568.2 (both inclusive) does not correctly perform permission checks in the Appearance configuration page, allowing attackers with Overall/Manage permission to modify Appearance configuration options they should not have access to.

## Affected

- `jenkins >= 2.421, <= 2.579`
- `jenkins >= 2.426.1, <= 2.568.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.