CVE-2026-71211: MLflow

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

MLflow's AI Gateway accepts an auth_config.api_base value when creating a gateway secret (mlflow/server/handlers.py, _create_gateway_secret) with no validation of scheme, host, or IP range; the value is stored verbatim. The gateway proxy endpoint (mlflow/server/gateway_api.py, raw_proxy) subsequently issues an HTTP request to that stored api_base plus a caller-supplied path and returns the full response body.

Affected products

• MLflow MLflow: up to and including 3.14.0

Published 2026-08-05. Last modified 2026-08-26.