HIGH7.5

PYSEC-2026-1650

mlflow Path Traversal vulnerability

Quick fix

PYSEC-2026-1650 — mlflow: upgrade to the fixed version with the command below.

pip install --upgrade 'mlflow>=2.12.1'

Details

A path traversal vulnerability exists in mlflow/mlflow version 2.9.2, allowing attackers to access arbitrary files on the server. By crafting a series of HTTP POST requests with specially crafted 'artifact_location' and 'source' parameters, using a local URI with '#' instead of '?', an attacker can traverse the server's directory structure. The issue occurs due to insufficient validation of user-supplied input in the server's handlers.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/mlflow

Introduced in: 0Fixed in: 2.12.1

Fixpip install --upgrade 'mlflow>=2.12.1'

References

https://nvd.nist.gov/vuln/detail/CVE-2024-1483[ADVISORY]
https://github.com/mlflow/mlflow[PACKAGE]
https://huntr.com/bounties/52a3855d-93ff-4460-ac24-9c7e4334198d[WEB]
https://pypi.org/project/mlflow[PACKAGE]
https://github.com/advisories/GHSA-f82r-jj5r-6g97[ADVISORY]