CVE-2026-84653
Received Received - Intake

Jenkins Permission Bypass in Appearance Configuration

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Jenkins Project

Description
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.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84653
EUVD
EUVD-2026-70119

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
jenkins jenkins From 2.421 (inc) to 2.579 (inc)
jenkins jenkins From 2.426.1 (inc) to 2.568.2 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability affects Jenkins versions 2.421 to 2.579 and LTS versions 2.426.1 to 2.568.2. It allows attackers with Overall/Manage permissions to modify Appearance configuration options beyond their intended access.

Detection Guidance

Check Jenkins versions between 2.421-2.579 or LTS 2.426.1-2.568.2. Review logs for unauthorized changes to Appearance configuration by users with Overall/Manage permission.

Impact Analysis

An attacker could change Jenkins appearance settings, potentially leading to misconfiguration, unauthorized access, or disruption of Jenkins services.

Compliance Impact

This vulnerability allows attackers with Overall/Manage permission to modify Appearance configuration options they should not have access to. This could potentially lead to unauthorized changes in the user interface or branding, which may affect data presentation and user interactions. However, the provided text does not specify direct impacts on GDPR or HIPAA compliance.

Mitigation Strategies

Upgrade Jenkins to a patched version outside the vulnerable range. Restrict Overall/Manage permissions to only necessary users. Audit Appearance configuration changes for unauthorized modifications.

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