Apache CXF OIDC Token Validation Bypass (selfissued IDs) <4.2.3
CVE-2026-65583 Published on August 6, 2026
Apache CXF: Self-issued ID token claims validation skipped
Apache CXFs OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks (issuer/subject/audience/time and sub_jwk binding), enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in the validator. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fixes this issue.
Weakness Type
Insufficient Verification of Data Authenticity
The software does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
Products Associated with CVE-2026-65583
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Affected Versions
Apache Software Foundation Apache CXF:- Version 4.2.0 and below 4.2.3 is affected.
- Version 4.0.0 and below 4.1.8 is affected.
- Before 3.6.12 is affected.