CVE-2026-84661
published 2026-09-02CVE-2026-84661: 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…
PriorityP432medium5.4CVSS 3.1
AVNACLPRLUINSUCNILAL
EPSS
0.36%
28.7th percentile
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.
Affected
54 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| jenkins | allure | — | — |
| jenkins | allure_plugin | — | — |
| jenkins | build_step | — | — |
| jenkins | build_step_plugin | — | — |
| jenkins | customizable_header | — | — |
| jenkins | customizable_header_plugin | — | — |
| jenkins | databoundsetter_annotated_methods_that_manage_the | — | — |
| jenkins | databoundsetter_annotated_methods_that_manage_the_plugin | — | — |
| jenkins | file_parameter | — | — |
| jenkins | file_parameter_plugin | — | — |
| jenkins | gitlab | — | — |
| jenkins | gitlab_plugin | — | — |
| jenkins | groovy_libraries | — | — |
| jenkins | groovy_libraries_plugin | — | — |
| jenkins | ids_in_xebialabs_xl_deploy | — | — |
| jenkins | ids_in_xebialabs_xl_deploy_plugin | — | — |
| jenkins | improper_access_control_in_customizable_header | — | — |
| jenkins | improper_access_control_in_customizable_header_plugin | — | — |
| jenkins | improper_access_control_in_ldap | — | — |
| jenkins | improper_access_control_in_ldap_plugin | — | — |
| jenkins | improper_access_control_in_saml | — | — |
| jenkins | improper_access_control_in_saml_plugin | — | — |
| jenkins | improper_access_control_in_thinbackup | — | — |
| jenkins | improper_access_control_in_thinbackup_plugin | — | — |
| jenkins | jenkins_core | — | — |
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
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 us
ghsa_unreviewed·2026-09-02
CVE-2026-84661 [MEDIUM] CWE-862 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 us
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.
VulDB
Jenkins Project Build Step Plugin up to 599.v4b_67ea_11b_152 propagateAbort permission
vuldb·2026-09-02·CVSS 5.4
CVE-2026-84661 [MEDIUM] Jenkins Project Build Step Plugin up to 599.v4b_67ea_11b_152 propagateAbort permission
A vulnerability classified as problematic has been found in Jenkins Project Build Step Plugin up to 599.v4b_67ea_11b_152. This issue affects some unknown processing. This manipulation of the argument propagateAbort causes permission issues.
This vulnerability is registered as CVE-2026-84661. Remote exploitation of the attack is possible. No exploit is available.
Jenkins
Jenkins Security Advisory 2026-09-02
vendor_jenkins·2026-09-02·CVSS 8.8
CVE-2026-84645 [HIGH] Jenkins Security Advisory 2026-09-02
Title: Jenkins Security Advisory 2026-09-02
Jenkins Security Advisory 2026-09-02
Jenkins Security Home
For Administrators
Overview
Terminology
Vulnerabilities and Scoring
Security Advisories
Security Issues
Advisory Schedule
Vulnerabilities in Plugins
How We Fix Security Issues
For Reporters
Reporting Vulnerabilities
Jenkins CNA
For Maintainers
Overview
Vulnerabilities in Plugins
Jenkins Security Team
About
Contributions
This advisory announces vulnerabilities in the following Jenkins deliverables:
Jenkins (core)
Allure
Plugin
Customizable Header
Plugin
File Parameter
Plugin
GitLab
Plugin
Job Configuration History
Plugin
LDAP
Plugin
Microsoft Entra ID (previ
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-02
Published