Description
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.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-64849 ↗
- github.com/mlflow/mlflow/commit/ba949522477cbd5915aa55d29b0cfad7d5ddf939 ↗
- github.com/mlflow/mlflow/issues/24179 ↗
- github.com/mlflow/mlflow/pull/24258 ↗
- github.com/mlflow/mlflow/releases/tag/v3.15.0 ↗
- github.com/mlflow/mlflow/security/advisories/GHSA-7gwp-5pfp-969j ↗
- www.cisa.gov/known-exploited-vulnerabilities-catalog ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.