CVE-2026-84661
Quick assessment
Affected
Jenkins Project Jenkins Pipeline: Build Step Plugin
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Jenkins Pipeline: Build Step Plugin是Jenkins组织的一款构建步骤定义插件。 Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152及之前版本存在授权问题漏洞，该漏洞源于缺少权限检查，当使用propagateAbort参数时，可能导致下游构建被取消，即使构建的身份验证缺乏对下游作业的Item/Cancel权限。
Possible ATT&CK Techniques 1 AI
T1083 · File and Directory DiscoveryAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Jenkins Project | Jenkins Pipeline: Build Step Plugin | ≤ 599.v4b_67ea_11b_152 |
affected |
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I. Basic Information for CVE-2026-84661
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Jenkins Pipeline: Build Step Plugin 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jenkins Pipeline: Build Step Plugin是Jenkins组织的一款构建步骤定义插件。 Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152及之前版本存在授权问题漏洞，该漏洞源于缺少权限检查，当使用propagateAbort参数时，可能导致下游构建被取消，即使构建的身份验证缺乏对下游作业的Item/Cancel权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Jenkins Project | Jenkins Pipeline: Build Step Plugin | 0 ~ 599.v4b_67ea_11b_152 | - |
|
II. Public POCs for CVE-2026-84661
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Jenkins Project · 2026-09-02 · 33 CVEs total
| CVE-2026-84659 | Jenkins Script Security Plugin 授权问题漏洞 | |
| CVE-2026-84645 | Jenkins 输入验证错误漏洞 | |
| CVE-2026-84646 | Jenkins 反序列化注入漏洞 | |
| CVE-2026-84647 | Jenkins 反序列化注入漏洞 | |
| CVE-2026-84648 | Jenkins 跨站脚本漏洞 | |
| CVE-2026-84650 | Jenkins 反序列化注入漏洞 | |
| CVE-2026-84649 | Jenkins 跨站请求伪造漏洞 | |
| CVE-2026-84651 | Jenkins 权限许可和访问控制问题漏洞 | |
| CVE-2026-84653 | Jenkins 安全漏洞 | |
| CVE-2026-84652 | Jenkins 安全漏洞 | |
| CVE-2026-84654 | Jenkins 输入验证错误漏洞 | |
| CVE-2026-84655 | Jenkins 输出处理不当漏洞 | |
| CVE-2026-84656 | Jenkins 授权问题漏洞 | |
| CVE-2026-84657 | Jenkins 授权问题漏洞 | |
| CVE-2026-84658 | Jenkins Script Security Plugin 信息泄露漏洞 | |
| CVE-2026-84660 | Jenkins Pipeline: Build Step Plugin 授权问题漏洞 | |
| CVE-2026-84677 | Jenkins update-center2 跨站脚本漏洞 | |
| CVE-2026-84662 | Jenkins LDAP Plugin 输入验证错误漏洞 | |
| CVE-2026-84663 | Jenkins Pipeline: Groovy Libraries Plugin 跨站请求伪造漏洞 | |
| CVE-2026-84665 | Jenkins SonarQube Scanner Plugin 跨站脚本漏洞 |
Showing top 20 of 33 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-84661
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