Jenkins 2.421-2.579 LTS 2.426.1-2.568.2: Overall/Manage Can Alter Appearance Config
CVE-2026-84653 Published on September 2, 2026
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.
Vulnerability Analysis
CVE-2026-84653 can be exploited with network access, requires user interaction and user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-84653 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-84653
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Affected Versions
Jenkins Project Jenkins:- Version 2.580 and below * is unaffected.
- Before 2.421 is unaffected.
- Version 2.568.3 and below 2.568.* is unaffected.