diff --git a/libraries/check_user_privileges.lib.php b/libraries/check_user_privileges.lib.php
index 1b57c4e8c656..67a85dbfa140 100644
--- a/libraries/check_user_privileges.lib.php
+++ b/libraries/check_user_privileges.lib.php
@@ -39,6 +39,22 @@ function PMA_checkRequiredPrivilegesForFlushing()
  */
 function PMA_checkRequiredPrivilgesForAdjust()
 {
+    if (PMA_Util::cacheExists('db_priv')) {
+        $GLOBALS['db_priv'] = PMA_Util::cacheGet(
+            'db_priv'
+        );
+        $GLOBALS['col_priv'] = PMA_Util::cacheGet(
+            'col_priv'
+        );
+        $GLOBALS['table_priv'] = PMA_Util::cacheGet(
+            'table_priv'
+        );
+        $GLOBALS['proc_priv'] = PMA_Util::cacheGet(
+            'proc_priv'
+        );
+        return;
+    }
+
     $privs_available = true;
     // FOR DB PRIVS
     $select_privs_available = $GLOBALS['dbi']->tryQuery(
@@ -214,6 +230,12 @@ function PMA_checkRequiredPrivilgesForAdjust()
     // Save the value
     $GLOBALS['proc_priv'] = $privs_available;
 
+    // must also cacheUnset() them in
+    // libraries/plugins/auth/AuthenticationCookie.class.php
+    PMA_Util::cacheSet('proc_priv', $GLOBALS['proc_priv']);
+    PMA_Util::cacheSet('table_priv', $GLOBALS['table_priv']);
+    PMA_Util::cacheSet('col_priv', $GLOBALS['col_priv']);
+    PMA_Util::cacheSet('db_priv', $GLOBALS['db_priv']);
 }
 
 /**
diff --git a/libraries/plugins/auth/AuthenticationCookie.class.php b/libraries/plugins/auth/AuthenticationCookie.class.php
index 8f82c6e36a49..431850270948 100644
--- a/libraries/plugins/auth/AuthenticationCookie.class.php
+++ b/libraries/plugins/auth/AuthenticationCookie.class.php
@@ -444,6 +444,11 @@ public function authCheck()
             PMA_Util::cacheUnset('db_to_create');
             PMA_Util::cacheUnset('dbs_where_create_table_allowed');
             PMA_Util::cacheUnset('dbs_to_test');
+            PMA_Util::cacheUnset('db_priv');
+            PMA_Util::cacheUnset('col_priv');
+            PMA_Util::cacheUnset('table_priv');
+            PMA_Util::cacheUnset('proc_priv');
+
             $GLOBALS['no_activity'] = true;
             $this->authFails();
             if (! defined('TESTSUITE')) {