CVE-2026-50623

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 or 3.6.12, which fixes this issue.

Score
CVSS 3.1 4.8 Medium
Status
Modified - security@apache.org
Published
2026-06-12
Last modified
2026-10-25
Weaknesses
CWE-287

Affected products

References

 
 
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