Medium severity6.5NVD Advisory· Published Aug 2, 2026· Updated Sep 16, 2026
CVE-2026-18572
CVE-2026-18572
Description
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.
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Affected products
3- cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*
Patches
Vulnerability mechanics
References
4- access.redhat.com/security/cve/CVE-2026-18572nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVendor Advisory
- access.redhat.com/errata/RHSA-2026:68277nvd
- access.redhat.com/errata/RHSA-2026:68278nvd
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