CVE-2026-9800
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.
- Score
- CVSS 3.1 8.1 High
- Status
- Modified - secalert@redhat.com
- Published
- 2026-06-25
- Last modified
- 2026-10-20
- Weaknesses
- CWE-1025
Affected products
- Build Keycloak (Redhat)
- Build Of Keycloak (Redhat)
- Jbosseapxp (Redhat)
- Quarkus (Redhat)
- Red Hat Single Sign On (Redhat)
References
- https://access.redhat.com/errata/RHSA-2026:30049
- https://access.redhat.com/errata/RHSA-2026:30050
- https://access.redhat.com/errata/RHSA-2026:30083
- https://access.redhat.com/errata/RHSA-2026:30084
- https://access.redhat.com/errata/RHSA-2026:36002
- https://access.redhat.com/errata/RHSA-2026:36013
- https://access.redhat.com/errata/RHSA-2026:50846
- https://access.redhat.com/errata/RHSA-2026:50847
- https://access.redhat.com/security/cve/CVE-2026-9800
- https://bugzilla.redhat.com/show_bug.cgi?id=2482472
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9800.json
