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GHSA-7qhf-v65m-g5f3

mlflow: FastAPI job endpoints under `/ajax-api/3.0/jobs/*` are not protected by authentication or authorization

Source: GitHub Advisory Database (reviewed) Critical CVE-2026-0545

Packages

EcosystemPackageAffectedFixed in
PyPI mlflow <= 3.10.1 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

In mlflow/mlflow, the FastAPI job endpoints under `/ajax-api/3.0/jobs/*` are not protected by authentication or authorization when the `basic-auth` app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled (`MLFLOW_SERVER_ENABLE_JOB_EXECUTION=true`) and any job function is allowlisted, any network client can submit, read, search, and cancel jobs without credentials, bypassing basic-auth entirely. This can lead to unauthenticated remote code execution if allowed jobs perform privileged actions such as shell execution or filesystem changes. Even if jobs are deemed safe, this still constitutes an authentication bypass, potentially resulting in job spam, denial of service (DoS), or data exposure in job results.

References

External links from the advisory. They lead to third-party sites.