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new 1477cb4e87b2 CAMEL-23738: camel-keycloak - always verify access token
even without required roles/permissions (#23958)
1477cb4e87b2 is described below
commit 1477cb4e87b2c301f1cdcddca5b153fbbef6934b
Author: Andrea Cosentino <[email protected]>
AuthorDate: Thu Jun 11 17:50:15 2026 +0200
CAMEL-23738: camel-keycloak - always verify access token even without
required roles/permissions (#23958)
Signed-off-by: Andrea Cosentino <[email protected]>
Co-authored-by: Claude Opus 4.8 (1M context) <[email protected]>
---
.../src/main/docs/keycloak-component.adoc | 5 +
.../security/KeycloakSecurityProcessor.java | 40 ++++++-
.../security/KeycloakSecurityProcessorTest.java | 118 +++++++++++++++++++++
.../ROOT/pages/camel-4x-upgrade-guide-4_21.adoc | 11 ++
4 files changed, 172 insertions(+), 2 deletions(-)
diff --git a/components/camel-keycloak/src/main/docs/keycloak-component.adoc
b/components/camel-keycloak/src/main/docs/keycloak-component.adoc
index 3bba59b931de..e363f40f2e28 100644
--- a/components/camel-keycloak/src/main/docs/keycloak-component.adoc
+++ b/components/camel-keycloak/src/main/docs/keycloak-component.adoc
@@ -3980,6 +3980,11 @@ beans:
----
====
+NOTE: When an access token is present, it is always verified - signature,
issuer and expiry for local JWT
+verification, or active state and issuer when token introspection is enabled -
regardless of whether
+`requiredRoles` or `requiredPermissions` are configured. Role and permission
checks are applied only after the
+token has been verified. A request without a token is rejected.
+
=== Role-based Authorization
[tabs]
diff --git
a/components/camel-keycloak/src/main/java/org/apache/camel/component/keycloak/security/KeycloakSecurityProcessor.java
b/components/camel-keycloak/src/main/java/org/apache/camel/component/keycloak/security/KeycloakSecurityProcessor.java
index 3b7ad2cf566f..5d5b58ed7a0f 100644
---
a/components/camel-keycloak/src/main/java/org/apache/camel/component/keycloak/security/KeycloakSecurityProcessor.java
+++
b/components/camel-keycloak/src/main/java/org/apache/camel/component/keycloak/security/KeycloakSecurityProcessor.java
@@ -59,11 +59,23 @@ public class KeycloakSecurityProcessor extends
DelegateProcessor {
throw new CamelAuthorizationException("Access token not found
in exchange", exchange);
}
- if (!policy.getRequiredRolesAsList().isEmpty()) {
+ boolean rolesRequired = !policy.getRequiredRolesAsList().isEmpty();
+ boolean permissionsRequired =
!policy.getRequiredPermissionsAsList().isEmpty();
+
+ // The token is always authenticated before the route runs
(signature, issuer and expiry for
+ // local JWT verification, or active state and issuer for
introspection). validateRoles() and
+ // validatePermissions() already authenticate the token, but they
only run when roles or
+ // permissions are required; when neither is configured,
authenticate here so that an invalid or
+ // unverifiable token is rejected instead of accepted.
Authorization checks run after authentication.
+ if (!rolesRequired && !permissionsRequired) {
+ authenticateToken(accessToken, exchange);
+ }
+
+ if (rolesRequired) {
validateRoles(accessToken, exchange);
}
- if (!policy.getRequiredPermissionsAsList().isEmpty()) {
+ if (permissionsRequired) {
validatePermissions(accessToken, exchange);
}
@@ -77,6 +89,30 @@ public class KeycloakSecurityProcessor extends
DelegateProcessor {
}
}
+ /**
+ * Authenticates the access token without applying any authorization (role
or permission) checks. When token
+ * introspection is enabled the token is validated against Keycloak's
introspection endpoint (active state and, when
+ * issuer validation is enabled, the issuer); otherwise the token
signature, issuer and expiry are verified locally.
+ * This guarantees that an invalid or unverifiable token is rejected even
when the policy does not require any roles
+ * or permissions.
+ */
+ private void authenticateToken(String accessToken, Exchange exchange)
throws Exception {
+ if (policy.isUseTokenIntrospection() && policy.getTokenIntrospector()
!= null) {
+ KeycloakTokenIntrospector.IntrospectionResult introspectionResult
+ = KeycloakSecurityHelper.introspectToken(accessToken,
policy.getTokenIntrospector());
+
+ if (!introspectionResult.isActive()) {
+ throw new CamelAuthorizationException("Token is not active
(may be revoked or expired)", exchange);
+ }
+
+ if (policy.isValidateIssuer()) {
+ validateIssuerFromIntrospection(introspectionResult, exchange);
+ }
+ } else {
+ parseAndVerifyToken(accessToken, exchange);
+ }
+ }
+
private String getAccessToken(Exchange exchange) throws Exception {
// Get token from exchange property (application-controlled, TRUSTED)
String propertyToken =
exchange.getProperty(KeycloakSecurityConstants.ACCESS_TOKEN_PROPERTY,
String.class);
diff --git
a/components/camel-keycloak/src/test/java/org/apache/camel/component/keycloak/security/KeycloakSecurityProcessorTest.java
b/components/camel-keycloak/src/test/java/org/apache/camel/component/keycloak/security/KeycloakSecurityProcessorTest.java
new file mode 100644
index 000000000000..89fe43304bbb
--- /dev/null
+++
b/components/camel-keycloak/src/test/java/org/apache/camel/component/keycloak/security/KeycloakSecurityProcessorTest.java
@@ -0,0 +1,118 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.camel.component.keycloak.security;
+
+import java.security.KeyPairGenerator;
+import java.security.PublicKey;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import org.apache.camel.CamelAuthorizationException;
+import org.apache.camel.CamelContext;
+import org.apache.camel.Exchange;
+import org.apache.camel.component.keycloak.security.cache.TokenCache;
+import org.apache.camel.impl.DefaultCamelContext;
+import org.apache.camel.support.DefaultExchange;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+/**
+ * Verifies that {@link KeycloakSecurityProcessor} authenticates the access
token even when the policy does not require
+ * any roles or permissions, so an invalid or unverifiable token is rejected
instead of being accepted.
+ */
+class KeycloakSecurityProcessorTest {
+
+ private CamelContext context;
+
+ @BeforeEach
+ void setUp() {
+ context = new DefaultCamelContext();
+ context.start();
+ }
+
+ @AfterEach
+ void tearDown() {
+ context.stop();
+ }
+
+ private Exchange bearer(String token) {
+ Exchange exchange = new DefaultExchange(context);
+ exchange.getIn().setHeader("Authorization", "Bearer " + token);
+ return exchange;
+ }
+
+ @Test
+ void testInvalidTokenRejectedWithoutRolesOrPermissionsLocalJwt() throws
Exception {
+ // Documented "Basic Setup": no required roles, no required
permissions.
+ KeycloakSecurityPolicy policy = new KeycloakSecurityPolicy();
+ policy.setServerUrl("http://localhost:8080";);
+ policy.setRealm("test-realm");
+ policy.setClientId("test-client");
+ policy.setClientSecret("test-secret");
+ // Configure a key so local JWT verification can run fully offline.
+ policy.setAutoFetchPublicKey(false);
+ KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA");
+ generator.initialize(2048);
+ PublicKey publicKey = generator.generateKeyPair().getPublic();
+ policy.setPublicKey(publicKey);
+
+ AtomicBoolean routeReached = new AtomicBoolean(false);
+ KeycloakSecurityProcessor processor = new KeycloakSecurityProcessor(e
-> routeReached.set(true), policy);
+
+ assertThrows(CamelAuthorizationException.class, () ->
processor.process(bearer("x")));
+ assertFalse(routeReached.get(), "Route body must not be reached for an
unverified token");
+ }
+
+ @Test
+ void testInactiveTokenRejectedWithoutRolesOrPermissionsIntrospection()
throws Exception {
+ // An introspector that reports the token as inactive, evaluated
offline.
+ KeycloakTokenIntrospector introspector = new KeycloakTokenIntrospector(
+ "http://localhost:8080";, "test-realm", "test-client",
"test-secret", (TokenCache) null) {
+ @Override
+ public IntrospectionResult introspect(String token) {
+ return new IntrospectionResult(Map.<String, Object>
of("active", false));
+ }
+ };
+
+ // Basic Setup (no roles/permissions) with introspection enabled.
+ KeycloakSecurityPolicy policy = new KeycloakSecurityPolicy() {
+ @Override
+ public boolean isUseTokenIntrospection() {
+ return true;
+ }
+
+ @Override
+ public KeycloakTokenIntrospector getTokenIntrospector() {
+ return introspector;
+ }
+ };
+ policy.setServerUrl("http://localhost:8080";);
+ policy.setRealm("test-realm");
+ policy.setClientId("test-client");
+ policy.setClientSecret("test-secret");
+
+ AtomicBoolean routeReached = new AtomicBoolean(false);
+ KeycloakSecurityProcessor processor = new KeycloakSecurityProcessor(e
-> routeReached.set(true), policy);
+
+ assertThrows(CamelAuthorizationException.class, () ->
processor.process(bearer("x")));
+ assertFalse(routeReached.get(), "Route body must not be reached for an
inactive token");
+ }
+}
diff --git
a/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_21.adoc
b/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_21.adoc
index f4dab43820a5..5e94871f03fe 100644
--- a/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_21.adoc
+++ b/docs/user-manual/modules/ROOT/pages/camel-4x-upgrade-guide-4_21.adoc
@@ -456,6 +456,17 @@ Hazelcast topic, queue, map, list, set, or in one of the
repositories
above must provide their own `Config` with a
`JavaSerializationFilterConfig` configured for their class names.
+=== camel-keycloak
+
+The `KeycloakSecurityPolicy` route policy now always verifies the access token
when one is present - signature,
+issuer and expiry for local JWT verification, or active state and issuer when
token introspection is enabled -
+even when neither `requiredRoles` nor `requiredPermissions` is configured.
Previously the token was only verified
+when at least one role or permission was required.
+
+Routes that attach a `KeycloakSecurityPolicy` without any roles or permissions
and that previously forwarded an
+unverified or invalid token will now have such requests rejected with a
`CamelAuthorizationException`. Provide a
+valid, verifiable token (or configure `requiredRoles` / `requiredPermissions`)
for these routes.
+
=== camel-stomp removal
Camel stomp was deprecated with Camel 4.17. The stomp library didn't have any
activities in the last 10 years. The component is now removed.
