CVE-2026-9800

Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison

Published Jun 25, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-f5p5-6xmx-p252 Keycloak vulnerable to authorization bypass via incorrect uri comparison
History
Type Values Removed Values Added
CPEs cpe:/a:redhat:quarkus:3.27::el8
cpe:/a:redhat:quarkus:3.33::el8
cpe:/a:redhat:quarkus:3
cpe:/a:redhat:quarkus:3.27
cpe:/a:redhat:quarkus:3.33
Type Values Removed Values Added
First Time appeared Redhat quarkus
CPEs cpe:/a:redhat:quarkus:3.27::el8
cpe:/a:redhat:quarkus:3.33::el8
Vendors & Products Redhat quarkus
Type Values Removed Values Added
CPEs cpe:/a:redhat:satellite:6
Vendors & Products Redhat satellite
Type Values Removed Values Added
Title Keycloak: keycloak policy enforcer: authorization bypass via incorrect uri comparison Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison
First Time appeared Redhat jbosseapxp
Redhat quarkus
Redhat red Hat Single Sign On
Redhat satellite
CPEs cpe:/a:redhat:jbosseapxp
cpe:/a:redhat:quarkus:3
cpe:/a:redhat:red_hat_single_sign_on:7
cpe:/a:redhat:satellite:6
Vendors & Products Redhat jbosseapxp
Redhat quarkus
Redhat red Hat Single Sign On
Redhat satellite
Type Values Removed Values Added
First Time appeared Redhat build Of Keycloak
Vendors & Products Redhat build Of Keycloak
Type Values Removed Values Added
CPEs cpe:/a:redhat:build_keycloak: cpe:/a:redhat:build_keycloak:26.6::el9
References
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Keycloak: keycloak policy enforcer: authorization bypass via incorrect uri comparison
First Time appeared Redhat
Redhat build Keycloak
Weaknesses CWE-1025
CPEs cpe:/a:redhat:build_keycloak:
Vendors & Products Redhat
Redhat build Keycloak
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 20, 2026, 4:28 AM
Reserved
May 28, 2026, 4:00 AM
Status
Modified
Published
Jun 25, 2026, 5:17 PM
Modified
Oct 20, 2026, 5:16 AM