Home

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.

PUBLISHED Reserved 2026-02-25 | Published 2026-06-02 | Updated 2026-06-02 | Assigner @huntr_ai




MEDIUM: 6.5CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-284 Improper Access Control

Product status

Any version
affected

References

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

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

cve.org (CVE-2026-3198)

nvd.nist.gov (CVE-2026-3198)

Download JSON