CVE-2026-50628

Estado: ModificadaCrítica (9.8)—

A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP address. Enabling this

security feature inadvertently creates an inverse security check. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.02%
Percentil entre todas las CVEs puntuadas: 62
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 Valid Accountsstealth · persistence · privilege escalation · initial access85 %
Impacto secundarioT1565.002 Transmitted Data Manipulationimpact75 %

Vulnerabilidad en OAuthRequestFilter de Apache CXF que invierte lógica de validación (CWE-20), permitiendo acceso no autenticado desde IPs no vinculadas (AV:N/AC:L/PR:N). Impacto: bypass autenticación OAuth (T1078) e intercepción de datos sensibles (I:H en CVSS, CWE-358 sugeiere corrupción).

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 Application Developer Guidance Active Directory Configuration Vulnerability Scanning User Training User Account Management

Tecnologías afectadas (1)

Apache — CXF

CWE

CWE-20
CWE-358

Referencias

JSON original (NVD)

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