MLflow: SSRF on unauthenticated MLflow servers via third-party scorer kwargs in the scorer invoke, register, and GenAI evaluate endpoints

影響: pip:mlflow >= 3.12.0rc0, < 3.17.0 → 3.17.0

MLflow's tracking server exposes POST /ajax-api/3.0/mlflow/scorer/invoke with no authentication, and the handler reflectively instantiates an attacker-named class from attacker-supplied JSON with unconstrained constructor kwargs. With the optional trulens + trulens-providers-litellm packages installed, an unauthenticated attacker can force the server to make an outbound HTTP request to an arbitrary host of their choosing, carrying attacker-controlled headers (SSRF). Details Scorer.model_validat…

GitHub Advisory Databaseで読む

2026/10/24 07:07、GitHub Advisory Databaseが「MLflow: SSRF on unauthenticated MLflow servers via third-party scorer kwargs in the scorer invoke, register, and GenAI evaluate endpoints」を公開しました (種別: 脆弱性アドバイザリ)。重大度は「警告」(medium) です。関連する技術: Python。CVE: CVE-2026-115886。