Vulnerability Details CVE-2026-18572
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 7.9%
CVSS Severity
CVSS v3 Score 6.5
References
Products affected by CVE-2026-18572
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cpe:2.3:a:redhat:build_of_keycloak:-