CVE-2023-6018 MLflow Arbitrary File Write
Unauthenticated attackers can overwrite arbitrary files on the MLflow server, potentially leading to remote code execution or data modification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-6018?
CVE-2023-6018 is a critical path traversal vulnerability in Lfprojects Mlflow, published on 16 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An attacker can overwrite any file on the server hosting MLflow without any authentication.
Weakness: CWE-78
Which versions are affected by CVE-2023-6018?
4 open source packages ship an affected version, including mlflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mlflow Bitnami | All versions | None |
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-2023-6018?
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-2023-6018 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-6018 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-2023-6018, GHSA-5p3h-7fwh-92rc, MINI-37fx-9fmq-2w5f, PYSEC-2026-417.