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CVE-2026-11876— Missing Authorization in get_deployed_stack Endpoint in zenml-io/zenml

Quick assessment

Affected
zenml-io zenml-io/zenml
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.

ZenML是ZenML公司开源的一个可扩展的开源 MLOps 框架,用于创建可移植的、可用于生产的机器学习管道。 ZenML 0.94.2版本存在授权问题漏洞，该漏洞源于 端点缺少RBAC授权检查，可能导致任何经过身份验证的用户枚举所有用户和租户的已部署堆栈、堆栈组件详细信息、服务连接器信息以及堆栈拥有者用户ID，从而暴露基础设施拓扑、堆栈所有权、部署元数据等敏感信息。

AI Predicted 7.5 Difficulty: Easy EPSS 0.31% · P21

Affected Version Matrix 1

VendorProduct Version RangeStatus
zenml-io zenml-io/zenml unspecified< 0.95.0 affected
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I. Basic Information for CVE-2026-11876

Vulnerability Information
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Vulnerability Title
Missing Authorization in get_deployed_stack Endpoint in zenml-io/zenml
Source: CVE Program / CVE List V5
Vulnerability Description
In zenml-io/zenml version 0.94.2, the `GET /api/v1/stack-deployment/stack` endpoint (`get_deployed_stack`) lacks proper RBAC authorization checks, allowing any authenticated user to enumerate all deployed stacks across all users and tenants. This includes stack component details, service connector information, and user IDs of stack owners. The vulnerability arises from two issues: missing endpoint-level RBAC checks and the use of a server-side `Client()` that bypasses the RBAC enforcement layer by directly accessing the database through `SqlZenStore`. This exposes sensitive information such as infrastructure topology, service connector details, stack ownership, and deployment metadata, potentially enabling cross-tenant reconnaissance and further attacks in multi-tenant ZenML Pro/Cloud deployments.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
ZenML 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZenML是ZenML公司开源的一个可扩展的开源 MLOps 框架,用于创建可移植的、可用于生产的机器学习管道。 ZenML 0.94.2版本存在授权问题漏洞，该漏洞源于`GET /api/v1/stack-deployment/stack`端点缺少RBAC授权检查，可能导致任何经过身份验证的用户枚举所有用户和租户的已部署堆栈、堆栈组件详细信息、服务连接器信息以及堆栈拥有者用户ID，从而暴露基础设施拓扑、堆栈所有权、部署元数据等敏感信息。
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
zenml-io zenml-io/zenml unspecified ~ 0.95.0 -

II. Public POCs for CVE-2026-11876

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III. Intelligence Information for CVE-2026-11876

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Patches & Fixes for CVE-2026-11876 (1)

Vendor Advisories for CVE-2026-11876 (1)

IV. Related Vulnerabilities

Same product: zenml-io/zenml
Same vendor: zenml-io
Same weakness: CWE-862

V. Comments for CVE-2026-11876

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