id: PYSEC-2026-2659
published: "2026-07-13T15:46:13.877221Z"
modified: "2026-07-13T16:04:54.013421Z"
aliases:
- CVE-2026-3198
- GHSA-r5m9-wm49-959f
summary: "MLflow: Any authenticated user can enumerate all gateway secrets, endpoints, and model definitions"
details: 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:
- package:
    name: mlflow
    ecosystem: PyPI
    purl: pkg:pypi/mlflow
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 3.11.0rc0
  versions:
  - 0.0.1
  - 0.1.0
  - 0.2.0
  - 0.2.1
  - 0.3.0
  - 0.4.0
  - 0.4.1
  - 0.4.2
  - 0.5.0
  - 0.5.1
  - 0.5.2
  - 0.6.0
  - 0.7.0
  - 0.8.0
  - 0.8.1
  - 0.8.2
  - 0.9.0
  - 0.9.0.1
  - 0.9.1
  - 1.0.0
  - 1.1.0
  - 1.1.1.dev0
  - 1.10.0
  - 1.11.0
  - 1.12.0
  - 1.12.1
  - "1.13"
  - 1.13.1
  - 1.14.0
  - 1.14.1
  - 1.15.0
  - 1.16.0
  - 1.17.0
  - 1.18.0
  - 1.19.0
  - 1.2.0
  - 1.20.0
  - 1.20.1
  - 1.20.2
  - 1.21.0
  - 1.22.0
  - 1.23.0
  - 1.23.1
  - 1.24.0
  - 1.25.0
  - 1.25.1
  - 1.26.0
  - 1.26.1
  - 1.27.0
  - 1.28.0
  - 1.29.0
  - 1.3.0
  - 1.30.0
  - 1.30.1
  - 1.4.0
  - 1.5.0
  - 1.6.0
  - 1.7.0
  - 1.7.1
  - 1.7.2
  - 1.8.0
  - 1.9.0
  - 1.9.1
  - 2.0.0
  - 2.0.0rc0
  - 2.0.1
  - 2.1.0
  - 2.1.1
  - 2.10.0
  - 2.10.1
  - 2.10.2
  - 2.11.0
  - 2.11.1
  - 2.11.2
  - 2.11.3
  - 2.11.4
  - 2.12.0
  - 2.12.1
  - 2.12.2
  - 2.13.0
  - 2.13.1
  - 2.13.2
  - 2.14.0
  - 2.14.0rc0
  - 2.14.1
  - 2.14.2
  - 2.14.2.dev0
  - 2.14.3
  - 2.15.0
  - 2.15.0rc0
  - 2.15.1
  - 2.16.0
  - 2.16.1
  - 2.16.2
  - 2.17.0
  - 2.17.0rc0
  - 2.17.1
  - 2.17.2
  - 2.18.0
  - 2.18.0rc0
  - 2.19.0
  - 2.19.0rc0
  - 2.2.0
  - 2.2.1
  - 2.2.2
  - 2.20.0
  - 2.20.0rc0
  - 2.20.1
  - 2.20.2
  - 2.20.3
  - 2.20.4
  - 2.21.0
  - 2.21.0rc0
  - 2.21.1
  - 2.21.2
  - 2.21.3
  - 2.22.0
  - 2.22.0rc0
  - 2.22.1
  - 2.22.2
  - 2.22.3
  - 2.22.4
  - 2.22.5
  - 2.3.0
  - 2.3.1
  - 2.3.2
  - 2.4.0
  - 2.4.1
  - 2.4.2
  - 2.5.0
  - 2.6.0
  - 2.7.0
  - 2.7.1
  - 2.8.0
  - 2.8.1
  - 2.9.0
  - 2.9.1
  - 2.9.2
  - 3.0.0
  - 3.0.0rc0
  - 3.0.0rc1
  - 3.0.0rc2
  - 3.0.0rc3
  - 3.0.1
  - 3.1.0
  - 3.1.0rc0
  - 3.1.1
  - 3.1.2
  - 3.1.3
  - 3.1.4
  - 3.10.0
  - 3.10.0rc0
  - 3.10.1
  - 3.2.0
  - 3.2.0rc0
  - 3.3.0
  - 3.3.0rc0
  - 3.3.1
  - 3.3.2
  - 3.4.0
  - 3.4.0rc0
  - 3.5.0
  - 3.5.0rc0
  - 3.5.1
  - 3.6.0
  - 3.6.0rc0
  - 3.7.0
  - 3.7.0rc0
  - 3.8.0
  - 3.8.0rc0
  - 3.8.1
  - 3.9.0
  - 3.9.0rc0
references:
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2026-3198
- type: WEB
  url: https://github.com/mlflow/mlflow/commit/6989066af33fdcb03588fd71a1a67f8fc5ef12c9
- type: PACKAGE
  url: https://github.com/mlflow/mlflow
- type: WEB
  url: https://huntr.com/bounties/e57db731-97d3-40c3-a429-831ee959807f
- type: PACKAGE
  url: https://pypi.org/project/mlflow
- type: ADVISORY
  url: https://github.com/advisories/GHSA-r5m9-wm49-959f
severity:
- type: CVSS_V3
  score: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N