CVE-2026-50623 Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService

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 th...

PT-2026-48845

Name of the Vulnerable Software and Affected Versions Apache CXF versions prior to 4.2.2 Apache CXF versions prior to 4.1.7 Apache CXF versions prior to 3.6.12 Description An authentication bypass exists in the OAuth2 TokenIntrospectionService. Due to a missing 'throw' keyword during the security...

CVE-2026-41671

Admidio is an open-source user management solution. Prior to version 5.0.9, the OIDC token introspection endpoint /modules/sso/index.php/oidc/introspect always returns "active": true for every request, regardless of whether a valid token is provided, whether the token is expired, revoked, or...

CVE-2026-41164: Insufficient Verification of Data Authenticity

nuts-node is the reference implementation of the Nuts specification. Prior to 6.2.3 and 5.4.31, the v1 access token introspection endpoint /auth/v1/introspectaccesstoken accepts any JWT signed by a key present on the node, without validating the JWT type, issuer-to-key binding, or required claims...

keycloak: Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

GHSA-4X37-HW65-52W8 Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

CVE-2026-37979

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

CVE-2026-37979

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

EUVD-2026-30887

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

CVE-2026-37979 Keycloak: keycloak: information disclosure via oidc token introspection endpoint audience bypass

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

CVE-2026-37979 Keycloak: keycloak: information disclosure via oidc token introspection endpoint audience bypass

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

CVE-2026-37979

Keycloak CVE-2026-37979 describes an information-disclosure via the OIDC token introspection endpoint where an attacker-controlled but credentialed confidential client can bypass audience restrictions, exposing token claims intended for other resource servers. Impact is confidentiality of lightwe...

CVE-2026-37979

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

EUVD-2026-30843

A flaw was found in Keycloak. When both realm-level and client-level notBefore revocation policies are configured, Keycloak's OpenID Connect OIDC Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain active, potentially...

Incorrect Implementation of Authentication Algorithm

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Incorrect Implementation of Authentication Algorithm through the TokenManager and OIDC endpoint token checks ...

PT-2026-41841

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw in the OpenID Connect OIDC Introspection feature occurs when both realm-level and client-level notBefore revocation policies are configured. In this scenario, the system fails to...

CVE-2026-37979: Improper Access Control

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

PT-2026-41870

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description An access control flaw exists in the OpenID Connect OIDC token introspection endpoint. This issue allows a confidential client with valid credentials to bypass audience restrictions and...

Open Redirect

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Open Redirect via the TokenEndpoint introspection flow in the OIDC protocol handlers. An attacker can...