CVE-2026-2635

Estado: AplazadaAlta (7.3)—

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

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Puntuación base: 7.3

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.21%
Percentil entre todas las CVEs puntuadas: 68
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access95 %
Impacto principalT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access90 %
Impacto secundarioT1059 Command and Scripting Interpreterexecution85 %

Red sin autenticación requerida (AV:N/AC:L/PR:N/UI:N) y credenciales hardcodeadas (CWE-798) permiten bypasear autenticación remota; ejecución de código arbitrario como administrador documentada.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Vulnerability Scanning Restrict Web-Based Content Password Policies Network Segmentation Multi-factor Authentication

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Lfprojects — Mlflow^AI

CWE

CWE-1393
CWE-798

Referencias

JSON original (NVD)

Mostrar

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      "value": "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.\n\nThe 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."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de Omisión de Autenticación por Uso de Contraseña Predeterminada en MLflow. Esta vulnerabilidad permite a atacantes remotos omitir la autenticación en instalaciones afectadas de MLflow. No es necesario autenticase para explotar esta vulnerabilidad.\n\nLa falla específica existe en el archivo basic_auth.ini. El archivo contiene credenciales predeterminadas almacenadas en el código. Un atacante puede aprovechar esta vulnerabilidad para omitir la autenticación y ejecutar código arbitrario en el contexto del administrador. Fue ZDI-CAN-28256."
    }
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  "lastModified": "2026-07-15T02:19:32.480",
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