CVE-2026-57818 Apache CXF: OAuth2 Authorization Code Replay via TOCTOU in JCacheCodeDataProvider

A race condition in JCacheCodeDataProvider allows an attacker to redeem a single authorization code multiple times via concurrent requests, resulting in the issuance of multiple distinct, valid access tokens. Users are recommended to upgrade to versions 4.2.3, 4.1.8 or 3.6.12, which fix this issu...

CVE-2026-57818 Apache CXF: OAuth2 Authorization Code Replay via TOCTOU in JCacheCodeDataProvider

A race condition in JCacheCodeDataProvider allows an attacker to redeem a single authorization code multiple times via concurrent requests, resulting in the issuance of multiple distinct, valid access tokens. Users are recommended to upgrade to versions 4.2.3, 4.1.8 or 3.6.12, which fix this issu...

CVE-2026-61466

CVE-2026-61466 affects Apache CXF’s OAuth2 Dynamic Client Registration endpoint. The authorization server stores the scope provided in a client registration request verbatim without validating it against an allowlist, enabling a client to self-assign privileged scopes at registration time. This c...

CVE-2026-61466 Apache CXF: OAuth2 Dynamic Client Registration Scope Self-Escalation

In Apache CXF's OAuth2 Dynamic Client Registration endpoint, the authorization server accepts and stores the scope value supplied in the client registration request verbatim, without validating it against an AS-defined allowlist. This could lead to a client self-assigning privileged scopes at...

CVE-2026-63687

Apache CXF JwtRequestCodeFilter exposes PKCE and OIDC replay protections by copying all claims from a signed request JWT into the authorization parameter map without excluding sensitive parameters. A adversary who can produce a validly-signed JWT (e.g., with a known/compromised client_secret) can...

CVE-2026-63687 Apache CXF: JwtRequestCodeFilter silently overrides outer PKCE and nonce parameters

Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT e.g., one whose clientsecret is known or compromised can thereby substitute th...

EUVD-2026-53860

Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT e.g., one whose clientsecret is known or compromised can thereby substitute th...

CVE-2026-63687 Apache CXF: JwtRequestCodeFilter silently overrides outer PKCE and nonce parameters

Apache CXF's JwtRequestCodeFilter copies all claims from a signed request JWT into the authorization parameter map without excluding security-sensitive parameters. A client that can produce a validly-signed request JWT e.g., one whose clientsecret is known or compromised can thereby substitute th...

EUVD-2026-53859

Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks issuer/subject/audience/time and subjwk binding, enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in...

CVE-2026-65583

Apache CXF is affected: the OIDC relying-party token validation can accept self-issued ID tokens without enforcing required claims (issuer/subject/audience/time, and sub_jwk binding), enabling authentication bypass with crafted tokens. This applies to CXF’s ID-token validation logic and is mitiga...

CVE-2026-65583

Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks issuer/subject/audience/time and subjwk binding, enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in...

CVE-2026-65583 Apache CXF: Self-issued ID token claims validation skipped

Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks issuer/subject/audience/time and subjwk binding, enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in...

CVE-2026-65583 Apache CXF: Self-issued ID token claims validation skipped

Apache CXF’s OIDC relying-party token validation could accept self-issued ID tokens without enforcing required claim checks issuer/subject/audience/time and subjwk binding, enabling authentication bypass with crafted tokens. However, note that self-issued ID tokens are not accepted by default in...

CVE-2026-68079

Apache CXF’s DefaultEncryptingCodeDataProvider has a flaw in removeCodeGrant that allows an authorization code to be redeemed unlimited times, violating the one-time-use RFC requirement. This can enable unlimited replay of captured codes. Affected versions are fixed in CXF 4.2.3, 4.1.8, and 3.6.1...

EUVD-2026-53858

In Apache CXF's DefaultEncryptingCodeDataProvider, a captured authorization code can be redeemed an unlimited number of times due to a flaw in the implementation of the removeCodeGrant functionality. This violates the RFC requirement that "The authorization code MUST NOT be used more than once."...

CVE-2026-68079 Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay

In Apache CXF's DefaultEncryptingCodeDataProvider, a captured authorization code can be redeemed an unlimited number of times due to a flaw in the implementation of the removeCodeGrant functionality. This violates the RFC requirement that "The authorization code MUST NOT be used more than once."...

EUVD-2026-53857

In Apache CXF's DefaultEncryptingOAuthDataProvider, revoked access tokens still decrypt successfully, and TokenIntrospectionService reports active:true. The same applies to refresh tokens. This violates the RFC stipulations that 'The authorization server MUST invalidate the token.' and...

CVE-2026-68481

CVE-2026-68481 affects Apache CXF’s DefaultEncryptingOAuthDataProvider. Revoked access and refresh tokens can still be decrypted, and TokenIntrospectionService reports active:true, contrary to RFC expectations that revoked tokens be invalidated and introspection return {"active":false}. The issue...

CVE-2026-68481 Apache CXF: Revocation bypass in DefaultEncryptingOAuthDataProvider

In Apache CXF's DefaultEncryptingOAuthDataProvider, revoked access tokens still decrypt successfully, and TokenIntrospectionService reports active:true. The same applies to refresh tokens. This violates the RFC stipulations that 'The authorization server MUST invalidate the token.' and...

CVE-2026-57817

The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the chash parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider IdP that omits the chash, the RP becomes vulnerable to Authorization Code...