CVE-2026-84661
Received Received - Intake

Missing Permission Check in Jenkins Pipeline Build Step Plugin

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Jenkins Project

Description
A missing permission check in Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152 and earlier causes downstream builds awaited by the `waitForBuild` step when the `propagateAbort` parameter is used to be canceled even when the build's authentication lacks Item/Cancel permission on the downstream job.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84661
EUVD
EUVD-2026-70127

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jenkinsci build_step_plugin to 599.v4b_67ea_11b_152 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a missing permission check in Jenkins Pipeline: Build Step Plugin. It allows downstream builds to be canceled even when the user's authentication lacks the required Item/Cancel permission on the downstream job, specifically when using the waitForBuild step with the propagateAbort parameter.

Impact Analysis

This vulnerability could allow unauthorized users to cancel builds they should not have permission to stop. This may disrupt CI/CD pipelines, cause unexpected build failures, or lead to incorrect build status reporting.

Mitigation Strategies

Update Jenkins Pipeline: Build Step Plugin to version 599.v4b_67ea_11b_152 or later to address the missing permission check issue.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-84661. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart