CVE-2026-9800
HIGHKeycloak: keycloak policy enforcer: authorization bypass via incorrect uri comparison
Title source: cnaDescription
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.
References (7)
Core 7
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-9800
Issue Tracking, X_Refsource_Redhat issue-tracking
x_refsource_redhat
RHBZ#2482472
https://bugzilla.redhat.com/show_bug.cgi?id=2482472
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:30083
https://access.redhat.com/errata/RHSA-2026:30083
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:30084
https://access.redhat.com/errata/RHSA-2026:30084
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:30049
https://access.redhat.com/errata/RHSA-2026:30049
Vendor Advisory vendor-advisory
x_refsource_redhat
RHSA-2026:30050
https://access.redhat.com/errata/RHSA-2026:30050
Scores
CVSS v3
8.1
EPSS
0.0030
EPSS Percentile
21.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-1025
Status
published
Products (12)
Red Hat/Red Hat Build of Keycloak
Red Hat/Red Hat build of Keycloak 26.4
26.4-19
Red Hat/Red Hat build of Keycloak 26.4
26.4.13-1
Red Hat/Red Hat build of Keycloak 26.4.13
Red Hat/Red Hat build of Keycloak 26.6
26.6-8
Red Hat/Red Hat build of Keycloak 26.6
26.6.4-2
Red Hat/Red Hat build of Keycloak 26.6.4
Red Hat/Red Hat build of Quarkus
Red Hat/Red Hat JBoss Enterprise Application Platform Expansion Pack
Red Hat/Red Hat Satellite 6
... and 2 more
Published
Jun 25, 2026
Tracked Since
Jun 25, 2026