diff --git a/src/main/java/li/strolch/rest/endpoint/VersionQuery.java b/src/main/java/li/strolch/rest/endpoint/VersionQuery.java
index 3d627e2e6..f7918f9f4 100644
--- a/src/main/java/li/strolch/rest/endpoint/VersionQuery.java
+++ b/src/main/java/li/strolch/rest/endpoint/VersionQuery.java
@@ -15,15 +15,20 @@
  */
 package li.strolch.rest.endpoint;
 
+import javax.servlet.http.HttpServletRequest;
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
 import javax.ws.rs.Produces;
+import javax.ws.rs.core.Context;
 import javax.ws.rs.core.GenericEntity;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 
+import li.strolch.agent.api.ComponentContainer;
 import li.strolch.agent.api.VersionQueryResult;
 import li.strolch.rest.RestfulStrolchComponent;
+import li.strolch.rest.StrolchRestfulConstants;
+import ch.eitchnet.privilege.model.Certificate;
 
 /**
  * @author Robert von Burg <eitch@eitchnet.ch>
@@ -33,9 +38,14 @@ public class VersionQuery {
 
 	@GET
 	@Produces(MediaType.APPLICATION_JSON)
-	public Response getVersions() {
-		VersionQueryResult versionQueryResult = RestfulStrolchComponent.getInstance().getContainer().getAgent()
-				.getVersion();
+	public Response getVersions(@Context HttpServletRequest request) {
+
+		ComponentContainer container = RestfulStrolchComponent.getInstance().getContainer();
+
+		Certificate cert = (Certificate) request.getAttribute(StrolchRestfulConstants.STROLCH_CERTIFICATE);
+		container.getPrivilegeHandler().isCertificateValid(cert);
+
+		VersionQueryResult versionQueryResult = container.getAgent().getVersion();
 		GenericEntity<VersionQueryResult> entity = new GenericEntity<VersionQueryResult>(versionQueryResult,
 				VersionQueryResult.class) {
 		};