[CVE-2026-50627] The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of inc…

Descripción técnica

The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

Puntuación CVSS

Score: 9.1/10 — Severidad: CRITICAL — Estado NIST: Modified

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Productos afectados

Cxf — Apache

Debilidades (CWE)

CWE-289, CWE-303

Fuente oficial

Publicado en NIST NVD.