CVE-2026-84654
Received Received - Intake

Stored Object Field Manipulation in Jenkins Stapler

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Jenkins Project

Description
In Stapler 2107.v8dfcb_e8ed317 and earlier, except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, form data binding allows setting public static fields of the bound configuration object, allowing attackers who can submit configuration forms to modify public static fields of the configuration objects those forms are bound to, resulting in changes that apply globally to the Jenkins instance.

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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-2026-84654
EUVD
EUVD-2026-70120

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
jenkins jenkins to 2.580 (exc)
jenkins jenkins_lts to 2.569 (exc)

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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 in Stapler 2107.v8dfcb_e8ed317 and earlier versions, except 2088.2093.vd7c3e58008a_6, allows attackers who can submit configuration forms to modify public static fields of configuration objects. This results in changes that apply globally to the entire Jenkins instance.

Impact Analysis

An attacker could exploit this to alter critical settings across the Jenkins instance, potentially leading to unauthorized access, data breaches, or system-wide misconfigurations that disrupt operations.

Mitigation Strategies

Update Jenkins to a version that includes a fixed Stapler version (2088.2093.vd7c3e58008a_6 or later). If using Jenkins LTS, update to LTS 2.568.3 or newer. This prevents attackers from modifying public static fields via configuration forms.

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