CVE-2024-27134 Excessive directory permissions in MLflow leads to local privilege escalation when using spark_udf
Local attackers can escalate privileges via a race condition in MLflow's spark_udf API due to excessive directory permissions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-27134?
CVE-2024-27134 is a high-severity vulnerability in Lfprojects Mlflow, published on 25 Nov 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Excessive directory permissions in MLflow leads to local privilege escalation when using spark_udf. This behavior can be exploited by a local attacker to gain elevated permissions by using a ToCToU attack. The issue is only relevant when the spark_udf() MLflow API is called.
Which versions are affected by CVE-2024-27134?
4 open source packages ship an affected version, including mlflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mlflow Bitnami | All versions | 2.16.0 |
mlflow PyPI | All versions | 2.16.0 |
mlflow PyPI | All versions | 2.16.0 |
mlflow PyPI | All versions | 2.16.0 |
Products include Lfprojects Mlflow.
How do I fix CVE-2024-27134?
Upgrade mlflow to 2.16.0 or later.
Is CVE-2024-27134 being exploited?
There is no known exploitation of CVE-2024-27134 in the wild and no public exploit code.
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-2024-27134, GHSA-qpgc-w4mg-6v92, PYSEC-2024-224.