CVE-2026-50627
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.
Scoring
- CVSS base score
- 0.02
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS probability
- 0.45%
- CWE
- CWE-289
- Published
- 2026-06-12
- Last modified
- 2026-08-10
Affected products
- Apache Software Foundation Apache CXF
- Apache Software Foundation Apache CXF
- Apache Software Foundation Apache CXF
Weakness type
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