CVE-2025-11200: PYSEC-2026-1642 - MLflow Weak Password Requirements Authentication Bypass Vulnerability

CVE-2025-11200 · Severity: critical · CVSS 9.8 · Published 2025-10-29

MLflow Weak Password Requirements Authentication Bypass Vulnerability. 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 handling of passwords. The issue results from weak password requirements. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-26916.

Technologies: mlflow (PyPI). Vendors: Lfprojects, PyPI.

Quick answers

Is CVE-2025-11200 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-11200 being exploited in the wild.
How severe is CVE-2025-11200?
Critical severity, with a CVSS score of 9.8, published 29 October 2025.
Which products and versions are affected?
mlflow (PyPI) ECOSYSTEM:introduced=0,fixed=2.22.0rc0.
Is there a fix for CVE-2025-11200?
Yes. mlflow (PyPI): upgrade to 2.22.0rc0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-11200?
Check whether you run Lfprojects Mlflow or mlflow (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • mlflow (PyPI): upgrade to 2.22.0rc0 or later
    pip install "mlflow>=2.22.0rc0"

Affected products

  • Lfprojects Mlflow
  • mlflow (PyPI) ECOSYSTEM:introduced=0,fixed=2.22.0rc0

Identifiers

  • CVE-2025-11200
  • GHSA-6xj8-rrqx-r4cv
  • PYSEC-2026-1642

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.