diff --git a/scm-webapp/src/main/java/sonia/scm/api/rest/ScmSecurityExceptionMapper.java b/scm-webapp/src/main/java/sonia/scm/api/rest/ScmSecurityExceptionMapper.java
new file mode 100644
index 0000000000..5c3d6b6c36
--- /dev/null
+++ b/scm-webapp/src/main/java/sonia/scm/api/rest/ScmSecurityExceptionMapper.java
@@ -0,0 +1,82 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.api.rest;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import sonia.scm.security.ScmSecurityException;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.ExceptionMapper;
+import javax.ws.rs.ext.Provider;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Provider
+public class ScmSecurityExceptionMapper
+        implements ExceptionMapper<ScmSecurityException>
+{
+
+  /** the logger for ScmSecurityExceptionMapper */
+  private static final Logger logger =
+    LoggerFactory.getLogger(ScmSecurityExceptionMapper.class);
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param exception
+   *
+   * @return
+   */
+  @Override
+  public Response toResponse(ScmSecurityException exception)
+  {
+    if (logger.isWarnEnabled())
+    {
+      logger.warn(exception.getMessage(), exception);
+    }
+
+    return Response.status(Response.Status.FORBIDDEN).build();
+  }
+}