CVE-2026-8147 — Authorization Bypass in mlflow/mlflow

Affected: mlflow/mlflow

In MLflow versions prior to 3.14.0, when running with authentication enabled, the trace API endpoints lack proper authorization validators. This allows any authenticated user to bypass experiment-level authorization controls on all trace operations, including reading, deleting, and modifying traces on experiments they do not have permission to access. The issue arises from the `_before_request` handler, which does not register authorization validators for trace endpoints, resulting in requests proceeding without validation. This vulnerability can expose sensitive data, destroy audit logs, and allow unauthorized modifications.

GHSA-2cm6-r77w-6g96 — MLflow: trace API endpoints lack proper authorization validators

Affected: PyPI: mlflow

In MLflow versions prior to 3.13.0, when running with authentication enabled, the trace API endpoints lack proper authorization validators. This allows any authenticated user to bypass experiment-level authorization controls on all trace operations, including reading, deleting, and modifying traces on experiments they do not have permission to access. The issue arises from the `_before_request` handler, which does not register authorization validators for trace endpoints, resulting in requests proceeding without validation. This vulnerability can expose sensitive data, destroy audit logs, and allow unauthorized modifications.

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CVE-2026-8147 — Authorization Bypass in mlflow/mlflow

GHSA-2cm6-r77w-6g96 — MLflow: trace API endpoints lack proper authorization validators