CVE-2026-9800Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison
Updated under an hour ago ()
Does this affect you?
It affects Red Hat build of Keycloak 26.4 and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-1025
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat build of Keycloak 26.4 redhat:build_keycloak | from 26.4.13-1 not affected | CNA record |
Red Hat Red Hat build of Quarkus 3.27.4.SP2 redhat:quarkus | 3.27 | CNA record |
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp | Versions not stated | CNA record |
Red Hat Red Hat Single Sign-On 7 redhat:red_hat_single_sign_on | 7 | CNA record |
Red Hat Red Hat build of Keycloak 26.4 redhat:build_keycloak | from 26.4.13-1 not affected; from 26.4.14-1 not affected | CISA ADP |
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp | Versions not stated | CISA ADP |
Red Hat Red Hat Single Sign-On 7 redhat:red_hat_single_sign_on | 7 | CISA ADP |
redhat build_of_keycloak redhat:build_of_keycloak | from 26.4 before 26.4.13; from 26.6 through 26.6.4 | NVD |
References
- https://access.redhat.com/errata/RHSA-2026:30049vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:30050vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:30083vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:30084vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36002vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:36013vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:50846vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:50847vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-9800vdb-entry, x-refsource-redhat, vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2482472issue-tracking, x-refsource-redhat, vendor-advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9800.jsonvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.