CVE-2026-3198
Description
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.
How to fix
- mlflow3.11.0rc0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lfprojects mlflow | 3.9.0 | — |
| mlflowPyPI | v < 3.11.0rc0 | 3.11.0rc0 |
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