MEDIUM4.3

PYSEC-2026-94

Quick fix

PYSEC-2026-94 — mlflow: upgrade to the fixed version with the command below.

pip install --upgrade 'mlflow>=3.11.0rc0'

Details

MLflow is vulnerable to an authorization bypass affecting the AJAX endpoint used to download saved model artifacts. Due to missing access‑control validation, a user without permissions to a given experiment can directly query this endpoint and retrieve model artifacts they are not authorized to access.

This issue affects MLflow version through 3.10.1

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/mlflow

Introduced in: 0Fixed in: 3.11.0rc0

Fixpip install --upgrade 'mlflow>=3.11.0rc0'

References

https://cert.pl/en/posts/2026/04/CVE-2026-33865/[ADVISORY]
https://github.com/mlflow/mlflow/pull/21708[FIX]
https://afine.com/blogs/attacking-mlflow-how-ml-artifacts-become-attack-vectors[EVIDENCE]
https://github.com/advisories/GHSA-46r5-x6jq-v8g6[ADVISORY]