Privilege Escalation

Keycloak is vulnerable to Improper Authorization. The vulnerability is due to the Dynamic Client Registration policy failing to re-validate protocol mapper types during client updates, allowing an attacker with client registration privileges to replace an allowed mapper with a restricted...

CVE-2026-44476: Improper Authentication

Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's clientid, which is public information, can authenticate as that client at the token endpoint and obtain an access token without providing its clientsecret. This occu...

CVE-2026-70665: Improper Authorization

Doorkeeper OpenID Connect implements an OpenID Connect authentication provider for Rails applications on top of Doorkeeper. Prior to 1.10.4, the Dynamic Client Registration DCR endpoint persists client-supplied scopes without validating them against the server's configured scope set. Under certai...

PT-2026-81890

Name of the Vulnerable Software and Affected Versions Doorkeeper OpenID Connect versions prior to 1.10.4 Description The Dynamic Client Registration DCR endpoint persists client-supplied scopes without validating them against the server's configured scope set. In the...

CVE-2026-73563: URL Redirection to Untrusted Site

Backstage is an open framework for building developer portals. Prior to 0.29.2, the experimental dynamic client registration and client ID metadata document features in the @backstage/plugin-auth-backend use full-string matcher.isMatch glob matching for...

Missing Critical Step in Authentication

Overview org.apache.cxf:cxf-rt-rs-security-oauth2 is a services framework. Affected versions of this package are vulnerable to Missing Critical Step in Authentication in the scope parameter processing of the OAuth2 Dynamic Client Registration endpoint. An attacker can obtain unauthorized access t...

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...

EUVD-2026-53861

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-2026-61466

The Apache CXF services framework, specifically the org.apache.cxf:cxf-rt-rs-security-oauth2 package, contains a vulnerability in its OAuth2 Dynamic Client Registration endpoint. The root cause is that the authorization server accepts and stores the scope value from the client registration reques...

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-2026-61466

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...

PT-2026-68473

Name of the Vulnerable Software and Affected Versions Apache CXF versions prior to 4.2.3 Apache CXF versions prior to 4.1.8 Apache CXF versions prior to 3.6.12 Description In the OAuth2 Dynamic Client Registration endpoint, the authorization server stores the scope value from the client...

CVE-2026-61466: Missing Critical Step in Authentication

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...

keycloak-services: keycloak-services: DCR protocol mapper type-swap policy bypass allows privilege escalation

A flaw was found in Keycloak's Dynamic Client Registration DCR security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains...

keycloak-services: keycloak-services: Default DCR policy allows role forgery via User Property mappers

A flaw was found in the Dynamic Client Registration DCR component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive internal claim locations. An attacker...

keycloak-services: keycloak-services: Default DCR policy allows role forgery via User Property mappers

A flaw was found in the Dynamic Client Registration DCR component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive internal claim locations. An attacker...

keycloak-services: keycloak-services: DCR protocol mapper type-swap policy bypass allows privilege escalation

A flaw was found in Keycloak's Dynamic Client Registration DCR security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains...

CVE-2026-15572

A flaw was found in Keycloak's Dynamic Client Registration DCR security policy management. The "Allowed Protocol Mapper Types" policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains...

CVE-2026-16102

A flaw was found in the Dynamic Client Registration DCR component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive internal claim locations. An attacker...

CVE-2026-15572

CVE-2026-15572 (Keycloak) affects Keycloak’s Dynamic Client Registration (DCR) policy management. The bug is in the "Allowed Protocol Mapper Types" policy: during a client update, if the mapper’s configuration doesn’t change, re-validation of the mapper type is skipped, enabling an attacker with ...