GHSA-9mrv-8pvf-hf4m
CRITICALCVE-2026-50627The 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.
- Affected
- >= 4.2.0, < 4.2.2
- Fixed in
- 4.2.2
- Weakness
- CWE-289
- Published
- 2026-06-12
- Source
- github
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