MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. 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.
Is CVE-2026-64849 exploited?
Listed in the CISA KEV catalog on 2026-08-19.
Federal remediation due 2026-09-02.
Past that date by 41 days.
Public exploit code: none found in monitored sources.
Public detection rules exist.
Which products and versions are affected?
Oracle · Communications · Service Catalog and Design 8.0-8.3