CVE-2026-50627

UNKNOWN 0.0

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

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-289
Vendor	apache software foundation
Product	apache cxf
Published	Jun 12, 2026
Last Updated	Jun 12, 2026

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Affected Versions

Apache Software Foundation / Apache CXF

4.2.0 < 4.2.2 0 < 4.1.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

lists.apache.org: https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m openwall.com: http://www.openwall.com/lists/oss-security/2026/06/11/4

Credits

Guanping Zhang reported this vulnerability.