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-2026-16102 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...

CVE-2026-16102 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...

PT-2026-68178

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists in the Dynamic Client Registration DCR component of Keycloak. The default DCR policy does not properly validate the claim path for User Property mappers, which enables the...

Improper Input Validation

Overview Affected versions of this package are vulnerable to Improper Input Validation of certain client metadata fields when explicitly enabled. An attacker possessing a valid Initial Access Token can dynamically register a malicious client with crafted metadata. Depending on the metadata provid...

Spring Security Authorization Server Dynamic Client Registration endpoints perform insufficient validation of client metadata

Spring Security Authorization Server Dynamic Client Registration endpoints perform insufficient validation of certain client metadata fields when explicitly enabled. An attacker possessing a valid Initial Access Token can dynamically register a malicious client with crafted metadata. Depending on...