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.
Metrics
Affected Vendors & Products
References
History
Wed, 08 Jul 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-425 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Sat, 04 Jul 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
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ssvc
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Thu, 02 Jul 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Mlflow
Mlflow mlflow/mlflow |
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| Vendors & Products |
Mlflow
Mlflow mlflow/mlflow |
Thu, 02 Jul 2026 08:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Authorization Bypass in mlflow/mlflow | |
| Weaknesses | CWE-284 | |
| References |
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| Metrics |
cvssV3_0
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Status: PUBLISHED
Assigner: @huntr_ai
Published: 2026-07-02T07:32:58.308Z
Updated: 2026-07-02T12:28:31.554Z
Reserved: 2026-05-08T02:45:28.857Z
Link: CVE-2026-8147
Updated: 2026-07-02T12:28:17.262Z
No data.