CVE-2025-15031

Description

A vulnerability in MLflow's pyfunc extraction process allows for arbitrary file writes due to improper handling of tar archive entries. Specifically, the use of `tarfile.extractall` without path validation enables crafted tar.gz files containing `..` or absolute paths to escape the intended extraction directory. This issue affects the latest version of MLflow and poses a high/critical risk in scenarios involving multi-tenant environments or ingestion of untrusted artifacts, as it can lead to arbitrary file overwrites and potential remote code execution.

How to fix CVE-2025-15031

To remediate CVE-2025-15031, upgrade the affected package to a fixed version below.

• —upgrade to 3.11.1 or later
• —upgrade to 3.9.0rc0 or later

Is CVE-2025-15031 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 3.11.1
• from 0, < 3.9.0rc0

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-15031
• PATCHgithub.com/mlflow/mlflow
• WEBgithub.com/mlflow/mlflow/blob/fe4d9be330426904283401f1d2ed914238b6fc37/mlflow/pyfunc/dbconnect_artifact_cache.py#L140
• WEBgithub.com/mlflow/mlflow/commit/3bf6d81ac4d38654c8ff012dbd0c3e9f17e7e346