AI and data stack advisories

Severe, 6 weeks1498Projects326

1498 severe, 6 weeks · 326 projects

MLflowGHSA-gq3w-7jj3-x7gr

MLflow Use of Default Password Authentication Bypass Vulnerability

MLflow

CVE-2026-2635 · Published Feb 21, 2026 · updated Sep 10, 2026

Critical9.8
Fix: upgrade to 3.8.0rc0 or later
GitHub advisory

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.

Affected versions

PackageAffectedFixed in
mlflow
PyPI
< 3.8.0rc03.8.0rc0
Details and references

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