Vulnerabilities CVE-2026-50627

CVE-2026-50627

None

Open

TLP:CLEAR

Apache CXF: OAuth2: Missing JWT Audience and Issuer Validation in Access Token Validator

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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.

Details

EPSS Score ⓘ: 0.45%

36.9th percentile
Confidence: 90%
Published: Jun 12, 2026
Last Modified: Aug 10, 2026

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