GHSA-f5p5-6xmx-p252
Keycloak vulnerable to authorization bypass via incorrect uri comparison
At a glance
- Published
- Updated
- CVE
- CVE-2026-9800
- Aliases
- BIT-keycloak-2026-9800
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Description
### 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.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.keycloak:keycloak-services | introduced 0, fixed 26.6.4 |
| Maven · org.keycloak:keycloak-policy-enforcer | introduced 0, fixed 26.0.10 |
References
- https://github.com/keycloak/keycloak/security/advisories/GHSA-f5p5-6xmx-p252 WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-9800 ADVISORY
- https://access.redhat.com/errata/RHSA-2026:30049 WEB
- https://access.redhat.com/errata/RHSA-2026:30050 WEB
- https://access.redhat.com/errata/RHSA-2026:30083 WEB
- https://access.redhat.com/errata/RHSA-2026:30084 WEB
- https://access.redhat.com/errata/RHSA-2026:36002 WEB
- https://access.redhat.com/errata/RHSA-2026:36013 WEB
- https://access.redhat.com/errata/RHSA-2026:50846 WEB
- https://access.redhat.com/errata/RHSA-2026:50847 WEB
- https://access.redhat.com/security/cve/CVE-2026-9800 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2482472 WEB
- https://github.com/keycloak/keycloak PACKAGE
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9800.json WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |