GHSA-2cm6-r77w-6g96
MLflow: trace API endpoints lack proper authorization validators
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2026-8147
- https://github.com/mlflow/mlflow/pull/23014
- https://github.com/mlflow/mlflow/commit/f9b1eb510478570609ef451984a255775aa4b937
- https://github.com/mlflow/mlflow
- https://github.com/mlflow/mlflow/releases/tag/v3.13.0
- https://huntr.com/bounties/b00c3ddd-373e-492f-9bf0-41a28bb21ed5