PYSEC-2026-2659
MLflow: Any authenticated user can enumerate all gateway secrets, endpoints, and model definitions
At a glance
- Published
- Updated
- CVE
- CVE-2026-3198
- Aliases
- BIT-mlflow-2026-3198, GHSA-r5m9-wm49-959f
- CVSS_V3
- 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.
Affected packages
| Package | Versions |
|---|---|
| PyPI · mlflow | introduced 0, fixed 3.11.0rc0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-3198 ADVISORY
- https://github.com/mlflow/mlflow/commit/6989066af33fdcb03588fd71a1a67f8fc5ef12c9 WEB
- https://github.com/mlflow/mlflow PACKAGE
- https://huntr.com/bounties/e57db731-97d3-40c3-a429-831ee959807f WEB
- https://pypi.org/project/mlflow PACKAGE
- https://github.com/advisories/GHSA-r5m9-wm49-959f ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |