High severity8.1NVD Advisory· Published Jun 25, 2026· Updated Sep 14, 2026
CVE-2026-9800
CVE-2026-9800
Description
A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path within a request URL, either as a path segment or a query parameter, an attacker can gain unauthorized access to protected resources.
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Affected products
4Patches
Vulnerability mechanics
References
11- access.redhat.com/errata/RHSA-2026:30049nvdVendor Advisory
- access.redhat.com/errata/RHSA-2026:30050nvdVendor Advisory
- access.redhat.com/errata/RHSA-2026:30083nvdVendor Advisory
- access.redhat.com/errata/RHSA-2026:30084nvdVendor Advisory
- access.redhat.com/security/cve/CVE-2026-9800nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdVendor Advisory
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9800.jsonnvdVendor Advisory
- access.redhat.com/errata/RHSA-2026:36002nvd
- access.redhat.com/errata/RHSA-2026:36013nvd
- access.redhat.com/errata/RHSA-2026:50846nvd
- access.redhat.com/errata/RHSA-2026:50847nvd
News mentions
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