PYSEC-2026-421

vendorUSosv

MLflow Use of Default Password Authentication Bypass Vulnerability

view advisory published 2026-06-29Licence: CC-BY-4.0

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.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-2635US—OT elevated—
MLflow Use of Default Password Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of MLflow. Authent…
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references

External citations — patches, advisories, analysis.

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