CVE-2026-50627

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CVSS 3.1

9.1 critical

EPSS

<1%p38

Published

Jun 12, 2026 (Jun 12, 2026)

Modified

Aug 7, 2026

Description

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 or 3.6.12, which fixes this issue.

Vendors: apache
Products: cxf
Weakness: CWE-289, CWE-303
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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