CVE-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 hour…
Published: 2026-08-02 · CVSS: 6.5 · CVSS 3.1
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 actual server time. This allows the user to bypass these time-based restrictions and access protected resources at unauthorized times.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7