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MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. Starting in 3.3.0 and prior to 3.15.0, the unauthenticated POST /api/2.0/mlflow/webhooks/{id}/test endpoint calls _validate_webhook_url() in mlflow/utils/validation.py only for the original URL while mlflow/webhooks/delivery.py follows redirects and re-resolves the hostname without pinning the validated address, allowing attackers to reach internal or cloud metadata services and receive response_status and response_body. This issue is fixed in version 3.15.0.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Mlflow | — | Upgrade MLflow to Version 3.15.0 or Higher | Aug 25, 2026 | Aug 17, 2026 |
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