CVE-2026-84660: Vulnerability in Jenkins Project Jenkins Pipeline: Build Step Plugin
Description
A missing permission check in Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152 and earlier causes downstream builds triggered by the `build` step to be canceled even when the build's authentication lacks Item/Cancel permission on the downstream job.
CVSS v3.1
Score 5.4medium
Affected software
Jenkins Project
Jenkins Pipeline: Build Step Plugin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Jenkins Pipeline: Build Step Plugin version 599.v4b_67ea_11b_152 and earlier is caused by a missing permission check. Specifically, downstream builds triggered by the 'build' step can be canceled without requiring the proper Item/Cancel permission on the downstream job. This could lead to unauthorized cancellation of downstream builds, impacting build integrity and availability.
Potential Impact
The vulnerability allows users with limited permissions to cancel downstream builds they should not have control over. While it does not impact confidentiality, it affects the integrity and availability of the build process by enabling unauthorized cancellation of builds.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict permissions carefully to minimize risk. Monitor Jenkins plugin updates and apply any official patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-09-01T21:55:27.034Z
- State
- PUBLISHED
Threat ID: 6a984665acd9273b496cc4fe
Added to database: 09/02/2026, 15:53:09 UTC
Last enriched: 09/07/2026, 13:39:17 UTC
Last updated: 10/16/2026, 06:48:19 UTC
Views: 42
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