AI agent vulnerability · MLflow

CVE-2026-3198: MLflow: Any authenticated user can enumerate all gateway secrets, endpoints, and model definitions

mediumCVSS 3.0 6.5GHSA-r5m9-wm49-959f

MLflow 3.9.0 with basic-auth (--app-name basic-auth) fails to enforce authorization checks for multiple Gateway API 'list' endpoints. Specifically, the BEFOREREQUESTHANDLERS dictionary in mlflow/server/auth/init.py does not include entries for ListGatewaySecretInfos, ListGatewayEndpoints, and ListGatewayModelDefinitions.

Published Jun 2, 2026 · Updated Jul 9, 2026

Affected packages

mlflow

Ecosystem: PyPI
Affected: < 3.11.0rc0
Fixed in: 3.11.0rc0
Check: pip show mlflow

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

MLflow 3.9.0 with basic-auth (--app-name basic-auth) fails to enforce authorization checks for multiple Gateway API 'list' endpoints. Specifically, the BEFORE_REQUEST_HANDLERS dictionary in mlflow/server/auth/__init__.py does not include entries for ListGatewaySecretInfos, ListGatewayEndpoints, and ListGatewayModelDefinitions. This allows any authenticated user, regardless of their assigned permissions, to enumerate all gateway secrets, endpoints, and model definitions. This vulnerability exposes sensitive information, such as API keys, endpoint configurations, and proprietary model definitions, to unauthorized users.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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