CVE-2025-15031
HIGH8.1EPSS 0.33%Path Traversal Vulnerability in mlflow/mlflow
Published: 3/19/2026Modified: 4/8/2026
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.
Affected packages (2)
- Bitnami/mlflowfrom 0, < 3.11.1
- PyPI/mlflowfrom 0, < 3.9.0rc0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-15031
- PATCHhttps://github.com/mlflow/mlflow
- WEBhttps://github.com/mlflow/mlflow/blob/fe4d9be330426904283401f1d2ed914238b6fc37/mlflow/pyfunc/dbconnect_artifact_cache.py#L140
- WEBhttps://github.com/mlflow/mlflow/commit/3bf6d81ac4d38654c8ff012dbd0c3e9f17e7e346
- WEBhttps://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4e