Improper Access Control in mlflow/mlflow_CVE-2026-3198

6.5 / 10

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

Basic Information

ID CVE-2026-3198

Source @huntr_ai

Published Jun 2, 2026 at 02:50

Affected Product

Vendor mlflow

Product mlflow/mlflow

Version unspecified

Affected Versions mlflow mlflow/mlflow unspecified

CWE Classification

CWE-284

References

huntr.com /bounties/e57db731-97d3-40c3-a429-831ee959807f

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    "published": "2026-06-02T02:50:47.890Z",
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