| Component | MLflow |
| Severity | critical (CVSS 9.8) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published (NVD) | 2025-10-29 |
| Last modified | 2026-06-17 |
| Affected versions | mlflow <= 2.21.0 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-521 |
| CISA KEV | not listed |
NVD description
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.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep MLflow off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2025-11200
- https://github.com/mlflow/mlflow/commit/1f74f3f24d8273927b8db392c23e108576936c54
- https://www.zerodayinitiative.com/advisories/ZDI-25-932/
Read more
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