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HIGH7.5

PYSEC-2026-2661

MLflow has a command injection in mlflow/sagemaker/__init__.py

Quick fix

PYSEC-2026-2661 — mlflow: upgrade to the fixed version with the command below.

pip install --upgrade 'mlflow>=3.8.0rc0'

Details

A command injection vulnerability exists in mlflow/mlflow versions before v3.7.0, specifically in the `mlflow/sagemaker/__init__.py` file at lines 161-167. The vulnerability arises from the direct interpolation of user-supplied container image names into shell commands without proper sanitization, which are then executed using `os.system()`. This allows attackers to execute arbitrary commands by supplying malicious input through the `--container` parameter of the CLI. The issue affects environments where MLflow is used, including development setups, CI/CD pipelines, and cloud deployments.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/mlflow
Introduced in: 0Fixed in: 3.8.0rc0
Fixpip install --upgrade 'mlflow>=3.8.0rc0'

References