CVE-2026-3198
Improper Access Control in mlflow/mlflow
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jun 2, 2026
- Updated
- Jun 2, 2026
- Reserved
- Feb 25, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 6.5 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | @huntr_ai |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
mlflow/mlflowmlflow |
|
References
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