CVE-2026-9800
Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison
- State
- Published
- Severity
- 8.1 High
- Published
- Jun 25, 2026
- Updated
- Oct 20, 2026
- Reserved
- May 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat |
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | redhat-SADP |
Weaknesses
- CWE-1025 Comparison Using Wrong Factors
Affected Products
| Product | Versions |
|---|---|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4.13Red Hat | |
Red Hat build of Keycloak 26.4.14Red Hat | |
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6.4Red Hat | |
Red Hat build of Quarkus 3.27.4.SP2Red Hat |
|
Red Hat build of Quarkus 3.33.2.SP2Red Hat |
|
Red Hat build of QuarkusRed Hat | |
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat | |
Red Hat Single Sign-On 7Red Hat |
References
- RHSA-2026:30049vendor-advisory
- RHSA-2026:30050vendor-advisory
- RHSA-2026:30083vendor-advisory
- RHSA-2026:30084vendor-advisory
- RHSA-2026:36002vendor-advisory
- RHSA-2026:36013vendor-advisory
- RHSA-2026:50846vendor-advisory
- RHSA-2026:50847vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-9800vdb-entry
- RHBZ#2482472issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9800.json
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