CVE-2024-27132 Insufficient sanitization in MLflow leads to XSS when running an untrusted recipe.

What is CVE-2024-27132?

CVE-2024-27132 is a high-severity cross-site scripting vulnerability in Lfprojects Mlflow, published on 23 Feb 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Insufficient sanitization in MLflow leads to XSS when running an untrusted recipe.

This issue leads to a client-side RCE when running an untrusted recipe in Jupyter Notebook.

The vulnerability stems from lack of sanitization over template variables.

Weakness: CWE-79

Which versions are affected by CVE-2024-27132?

4 open source packages ship an affected version, including mlflow. It affects 1 product.

Products include Lfprojects Mlflow.

How do I fix CVE-2024-27132?

Upgrade mlflow to 2.10.0 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-27132 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-27132 exists.

Other vulnerabilities in Lfprojects Mlflow

• CVE-2026-64849 MLflow Server-Side Request Forgery Exploited Critical 9.3
• CVE-2025-15379 Command Injection in mlflow/mlflow Critical 10.0
• CVE-2024-0520 Remote Code Execution due to Full Controlled File Write in mlflow/mlflow Critical 10.0
• CVE-2023-6977 Path Traversal: '\..\filename' Critical 10.0
• CVE-2023-6709 Improper Neutralization of Special Elements Used in a Template Engine in mlflow/mlflow Critical 10.0

All Lfprojects Mlflow vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-mlflow-2024-27132, GHSA-6749-m5cp-6cg7, PYSEC-2024-240.