mlflow/mlflow · Security
MLflow Use of Default Password Authentication Bypass Vulnerability
- GHSA ID
- GHSA-gq3w-7jj3-x7gr
- CVE ID
- CVE-2026-2635
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
CWEs
- CWE-1393 · Use of Default Password
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-2635 ↗
- https://github.com/mlflow/mlflow/pull/19260 ↗
- https://www.zerodayinitiative.com/advisories/ZDI-26-111 ↗
- https://github.com/mlflow/mlflow/commit/5bf2ec2bd4222a18d78631183ac7f6b752afe8a4 ↗
- https://github.com/mlflow/mlflow/releases/tag/v3.8.0rc0 ↗
- https://github.com/advisories/GHSA-gq3w-7jj3-x7gr ↗