CVE-2026-2635

9.8 CRITICAL
Published: February 20, 2026 Modified: February 23, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/mlflow/mlflow/pull/19260
Source: zdi-disclosures@trendmicro.com
https://www.zerodayinitiative.com/advisories/ZDI-26-111/
Source: zdi-disclosures@trendmicro.com

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
1.8%
83th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)