Missing Authorization Affecting mlflow package, versions [,3.11.0rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published7 Apr 2026
- disclosed7 Apr 2026
- creditSławomir Zakrzewski
Introduced: 7 Apr 2026
NewCVE-2026-33866 (opens in a new tab)How to fix?
Upgrade mlflow to version 3.11.0rc1 or higher.
Overview
mlflow is a platform to streamline machine learning development, including tracking experiments, packaging code into reproducible runs, and sharing and deploying models.
Affected versions of this package are vulnerable to Missing Authorization due to missing access-control validation in the AJAX endpoint used for downloading saved model artifacts. An attacker can gain unauthorized access to model artifacts by directly querying this endpoint without proper permissions.