CVE-2026-50623
Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF. Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service. Users are recommended to upgrade to version 4.2.2 or 4.1.7, which fixes this issue.
| CWE | CWE-287 |
| 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
Credits
Guanping Zhang reported this vulnerability.