CVE-2026-2393

published 2026-05-11

CVE-2026-2393: A Server-Side Request Forgery (SSRF) vulnerability exists in MLflow versions prior to 3.9.0. The `_create_webhook()` function in `mlflow/server/handlers.py`…

Priority P3 46 high 7.1 CVSS 3.0

AV N AC L PR L UI N S U C H I L A N

A Server-Side Request Forgery (SSRF) vulnerability exists in MLflow versions prior to 3.9.0. The `_create_webhook()` function in `mlflow/server/handlers.py` accepts a user-controlled `url` parameter without validation, and the `_send_webhook_request()` function in `mlflow/webhooks/delivery.py` sends HTTP POST requests to this attacker-controlled URL. This allows an authenticated attacker to force the MLflow backend to send HTTP requests to internal services, cloud metadata endpoints, or arbitrary external servers. The lack of input sanitization, URL scheme filtering, or allowlist validation on the webhook URL enables exploitation, potentially leading to cloud credential theft, internal network access, and data exfiltration.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
lfprojects	mlflow	< 3.9.0	3.9.0
mlflow	mlflow_mlflow	>= 0 < 3.9.0	3.9.0
mlflow	mlflow_mlflow	>= unspecified < 3.10.0	3.10.0

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