CVE-2026-105302

Estado: Pendiente de análisisMedia (5.7)—

A flaw was found in the User Session Note mapper of the Keycloak identity and access management solution. The issue occurs because the mapper does not validate whether a requested session note contains sensitive internal credentials, such as federated access tokens from external identity providers. This allows a delegated client administrator to leak a user's upstream bearer tokens into the tokens issued to their managed application, potentially leading to unauthorized access to the user's data on external platforms.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Puntuación base: 5.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.20%
Percentil entre todas las CVEs puntuadas: 9
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.

ExplotaciónT1203 Exploitation for Client Executionexecution75 %
Impacto principalT1552.007 Container APIcredential access85 %
Impacto secundarioT1078.004 Cloud Accountsstealth · persistence · privilege escalation · initial access70 %

CVE en gestión de identidades (Keycloak) donde un administrador delegado con UI:R requiere abrir la aplicación para extraer tokens sensibles. CWE-200 (exposición de información) y PR:L confirman acceso autenticado. T1552.007 (tokens) por credenciales federadas filtradas; T1078.004 (tokens de acceso)

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

User Account Management Privileged Account Management Active Directory Configuration User Training Password Policies Network Segmentation

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-200

Referencias

JSON original (NVD)

Mostrar

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