CVE-2026-84671: Vulnerability in Jenkins Project Jenkins File Parameter Plugin
Description
Jenkins File Parameter Plugin 425.v3fa_801681b_5e and earlier allows writing files to arbitrary locations on the Jenkins controller file system through Stapler data binding, which can lead to remote code execution.
CVSS v3.1
Score 8.8high
Affected software
Jenkins Project
Jenkins File Parameter Plugin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Jenkins File Parameter Plugin up to version 425.v3fa_801681b_5e contains a directory traversal vulnerability (CWE-22) that enables writing files to arbitrary locations on the Jenkins controller file system through Stapler data binding. This improper validation of file paths can be exploited by an attacker with at least limited privileges (PR:L) and no user interaction (UI:N) to achieve remote code execution. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an attacker with limited privileges to write files anywhere on the Jenkins controller file system, potentially leading to remote code execution. This compromises the confidentiality, integrity, and availability of the Jenkins controller, which can affect the entire CI/CD pipeline and associated infrastructure.
Mitigation Recommendations
Patch status is not yet confirmed — check the Jenkins Project vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Until a patch is available, restrict access to Jenkins controllers and limit user privileges to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-09-01T21:55:27.035Z
- State
- PUBLISHED
Threat ID: 6a984667acd9273b496cc55a
Added to database: 09/02/2026, 15:53:11 UTC
Last enriched: 09/07/2026, 13:40:08 UTC
Last updated: 10/17/2026, 06:48:21 UTC
Views: 49
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