CVE-2023-6909 Path Traversal: '\..\filename' in mlflow/mlflow
Attackers can exploit path traversal in MLflow to read or modify arbitrary files on the server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-6909?
CVE-2023-6909 is a high-severity path traversal vulnerability in Lfprojects Mlflow, published on 18 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Path Traversal: '\..\filename' in GitHub repository mlflow/mlflow prior to 2.9.2.
Weakness: CWE-29
Which versions are affected by CVE-2023-6909?
4 open source packages ship an affected version, including mlflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mlflow Bitnami | All versions | 2.9.2 |
mlflow PyPI | All versions | 2.9.2 |
mlflow PyPI | All versions | 2.9.2 |
mlflow PyPI | All versions | 2.9.2 |
Products include Lfprojects Mlflow.
How do I fix CVE-2023-6909?
Upgrade mlflow to 2.9.2 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-6909 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-6909 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in Lfprojects Mlflow
- CVE-2026-64849 MLflow Server-Side Request Forgery
- CVE-2025-15379 Command Injection in mlflow/mlflow
- CVE-2024-0520 Remote Code Execution due to Full Controlled File Write in mlflow/mlflow
- CVE-2023-6977 Path Traversal: '\..\filename'
- CVE-2023-6709 Improper Neutralization of Special Elements Used in a Template Engine in mlflow/mlflow
Sources
Also known as BIT-mlflow-2023-6909, GHSA-5r3q-93q3-f978, PYSEC-2023-252.