Description
MLflow is vulnerable to an authorization bypass affecting the AJAX endpoint used to download saved model artifacts. Due to missing access‑control validation, a user without permissions to a given experiment can directly query this endpoint and retrieve model artifacts they are not authorized to access.
This issue affects MLflow version through 3.10.1
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mlflow | Mlflow | ≤ 3.10.1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | mlflow | < 3.11.0rc0 | 3.11.0rc0 | GHSA-46r5-x6jq-v8g6 |
References
- https://github.com/mlflow/mlflow/pull/21708 patch
- https://cert.pl/en/posts/2026/04/CVE-2026-33865/ third-party-advisory
- https://afine.com/blogs/attacking-mlflow-how-ml-artifacts-become-attack-vectors exploit technical-description