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

- 種別: advisory
- 重大度: medium
- 関連技術: python
- CVE: CVE-2026-115886
- 公開日時: 2026-10-23T22:07:26.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-2wqp-q3c6-ccj5)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-2wqp-q3c6-ccj5

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…