GHSA-g6pg-52vf-843h

MLFlow allows Tracing + Assessments Access

Description

In the latest version of mlflow/mlflow, when the `basic-auth` app is enabled, tracing and assessment endpoints are not protected by permission validators. This allows any authenticated user, including those with `NO_PERMISSIONS` on the experiment, to read trace information and create assessments for traces they should not have access to. This vulnerability impacts confidentiality by exposing trace metadata and integrity by allowing unauthorized creation of assessments. Deployments using `mlflow server --app-name=basic-auth` are affected.

Affected packages

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-15381 ADVISORY
• https://github.com/mlflow/mlflow PACKAGE
• https://github.com/mlflow/mlflow/blob/b569ebc74c14af593c326143bee2df44a5d59edf/mlflow/server/auth/__init__.py#L752 WEB
• https://huntr.com/bounties/149fb2f9-ef4b-4136-a25c-20563451904c WEB

Sources