High, CVSS 8.1MavenAmendedPublished
Keycloak vulnerable to authorization bypass via incorrect uri comparison
CVE-2026-9800 · GHSA-f5p5-6xmx-p252
- Affected
- Maven org.keycloak:keycloak-policy-enforcer < 26.0.10
- Fixed in
- 26.0.10· Vendor fix available
- Issue
- 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.
Recommended action: Upgrade to 26.0.10 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.