keycloak-services: keycloak-services: UMA claim token can override authorization time-policy evaluation attributes

Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies for example, only allowing access during business hours. A flaw was discovered where a user can include a fake time value in their authorization request that overrides the...

BIT-KEYCLOAK-2026-18572 Keycloak-services: keycloak-services: uma claim token can override authorization time-policy evaluation attributes

Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies for example, only allowing access during business hours. A flaw was discovered where a user can include a fake time value in their authorization request that overrides the...

CVE-2026-18572

Keycloak is affected by a vulnerability in its time-based access control. A flaw allows a user to include a fake time value in an authorization request, which overrides the actual server time and bypasses time-based restrictions, potentially granting access to protected resources outside allowed ...

Incorrect Authorization

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 Authorization due to claim handling in the UMA claim-token evaluation path. An attacker can access...