Bug 2527590 (CVE-2026-84653)

Summary: CVE-2026-84653 jenkins: Jenkins: Unauthorized configuration modification due to incorrect permission checks
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Jenkins. An attacker with Overall/Manage permission can exploit incorrect permission checks in the Appearance configuration page. This allows them to modify configuration options they should not have access to, potentially leading to unauthorized changes within the Jenkins environment.
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Description OSIDB Bzimport 2026-09-02 16:00:20 UTC
Jenkins 2.579 and earlier, LTS 2.568.2 and earlier 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.