CVE-2026-18572: Red Hat Build Of Keycloak

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Red Hat Build Of Keycloak: affected versions not specified

Published 2026-08-02. Last modified 2026-09-16.