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AI agent vulnerability · MLflow

CVE-2026-2635: MLflow Use of Default Password Authentication Bypass Vulnerability

criticalCVSS 3.0 9.8GHSA-gq3w-7jj3-x7gr

This vulnerability allows remote attackers to bypass authentication on affected installations of MLflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the basicauth.ini file. The file contains hard-coded default credentials. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of the administrator.

Published Feb 21, 2026 · Updated Mar 17, 2026

Affected packages

mlflow

Ecosystem
PyPI
Affected
< 3.8.0rc0
Fixed in
3.8.0rc0
Check
pip show mlflow

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

This vulnerability allows remote attackers to bypass authentication on affected installations of MLflow. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the basic_auth.ini file. The file contains hard-coded default credentials. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of the administrator.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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