CVE-2026-17526

Estado: Pendiente de análisisAlta (7.2)—

Keycloak is an open-source identity and access management solution. A vulnerability was discovered where a user with the impersonation role can impersonate a realm administrator. This allows the attacker to gain full administrative control over the realm, including the ability to manage users, clients, and roles.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.2

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.45%
Percentil entre todas las CVEs puntuadas: 37
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement75 %
Impacto principalT1078.002 Domain Accountsstealth · persistence · privilege escalation · initial access85 %
Impacto secundarioT1098.003 Additional Cloud Rolespersistence · privilege escalation80 %
Impacto secundarioT1556.001 Domain Controller Authenticationdefense impairment · persistence · credential access75 %

CWE-862 (falta control de acceso) permite al usuario con rol impersonation elevar privilegios hacia admin realm. AV:N sin requisitos de red, explotable remotamente contra servicio Keycloak accesible. Impactos: obtención de identidad privilegiada (T1078.002), gestión de cuentas (T1098.003) y modifica

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 Multi-factor Authentication User Training User Account Management Vulnerability Scanning Threat Intelligence Program

Tecnologías afectadas (1)

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

Keycloak — Keycloak^AI

CWE

CWE-862

Referencias

JSON original (NVD)

Mostrar

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