Bug 2441514 (CVE-2026-2635)

Summary: CVE-2026-2635 mlflow: MLflow Use of Default Password Authentication Bypass Vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jkoehler, lphiri
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in MLflow. A remote attacker can exploit this vulnerability by leveraging hard-coded default credentials present in the basic_auth.ini file. This allows the attacker to bypass authentication and execute arbitrary code in the context of the mlflow python application.
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Description OSIDB Bzimport 2026-02-20 23:01:39 UTC 
MLflow Use of Default Password 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 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. Was ZDI-CAN-28256.