CVE-2026-2635
criticalpriority · track · 0OT risk · elevatedEPSS 0.011 · 65 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.7–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-gq3w-7jj3-x7grMLflow Use of Default Password Authentication Bypass Vulnerability2026-02-21ghsa · osvUS
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.
- PYSEC-2026-421MLflow Use of Default Password Authentication Bypass Vulnerability2026-06-29vendor · osvUS
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.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://github.com/mlflow/mlflow/pull/19260cnnvd
- https://mlflow.org/releasesPatchcnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-26-111/cnnvd
- https://github.com/mlflow/mlflow/pull/19260enisa_euvd
- https://www.zerodayinitiative.com/advisories/ZDI-26-111/enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-2635nvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2441514nvd
- https://github.com/mlflow/mlflow/pull/19260nvd
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