CVE-2026-84653: Vulnerability in Jenkins Project Jenkins
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.
CVSS v3.1
Score 3.5low
Affected software
Jenkins Project
Jenkins
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84653 is a vulnerability in Jenkins affecting versions 2.421 through 2.579 and LTS versions 2.426.1 through 2.568.2. The flaw involves incorrect permission checks on the Appearance configuration page, enabling attackers with Overall/Manage permission to alter Appearance configuration options they should not be authorized to modify. The CVSS v3.1 base score is 3.5, indicating low severity, with low impact on confidentiality and integrity and no impact on availability. There is no vendor advisory or patch information provided at this time.
Potential Impact
Attackers with Overall/Manage permission can modify Appearance configuration options beyond their intended scope, potentially leading to unauthorized changes in Jenkins UI appearance settings. The impact on confidentiality and integrity is low, and there is no impact on availability. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict Overall/Manage permissions to trusted users only to minimize risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-09-01T21:55:27.033Z
- State
- PUBLISHED
Threat ID: 6a984662acd9273b496cc3cc
Added to database: 09/02/2026, 15:53:06 UTC
Last enriched: 09/07/2026, 11:51:53 UTC
Last updated: 10/15/2026, 18:48:24 UTC
Views: 57
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