diff --git a/library/Icingadb/Common/Auth.php b/library/Icingadb/Common/Auth.php
index c415d62d2..d25526e65 100644
--- a/library/Icingadb/Common/Auth.php
+++ b/library/Icingadb/Common/Auth.php
@@ -137,6 +137,9 @@ public function applyRestrictions(Query $query)
                 // Hence why the hosts restriction is also applied if only services are queried.
                 || $applyServiceRestriction;
 
+            $hostStateRelation = array_search('host_state', $relations, true);
+            $serviceStateRelation = array_search('service_state', $relations, true);
+
             $resolver = $query->getResolver();
 
             $queryFilter = Filter::any();
@@ -196,6 +199,34 @@ public function applyRestrictions(Query $query)
                 }
             }
 
+            if (! $this->getAuth()->hasPermission('icingadb/object/show-source')) {
+                // In case the user does not have permission to see the object's `Source` tab, then the user must be
+                // restricted from accessing the executed command for the object.
+                $columns = $query->getColumns();
+                $commandColumns = [];
+                if ($hostStateRelation !== false) {
+                    $commandColumns[] = $resolver->qualifyColumn('check_commandline', $hostStateRelation);
+                }
+
+                if ($serviceStateRelation !== false) {
+                    $commandColumns[] = $resolver->qualifyColumn('check_commandline', $serviceStateRelation);
+                }
+
+                if (! empty($columns)) {
+                    foreach ($commandColumns as $commandColumn) {
+                        $commandColumnPath = array_search($commandColumn, $columns, true);
+                        if ($commandColumnPath !== false) {
+                            $columns[$commandColumn] = new Expression("'***'");
+                            unset($columns[$commandColumnPath]);
+                        }
+                    }
+
+                    $query->columns($columns);
+                } else {
+                    $query->withoutColumns($commandColumns);
+                }
+            }
+
             if (! $obfuscationRules->isEmpty()) {
                 $flatvaluePath = $customVarRelationName
                     ? $resolver->qualifyColumn('flatvalue', $customVarRelationName)
diff --git a/library/Icingadb/Redis/VolatileStateResults.php b/library/Icingadb/Redis/VolatileStateResults.php
index 186022a30..af9211cbb 100644
--- a/library/Icingadb/Redis/VolatileStateResults.php
+++ b/library/Icingadb/Redis/VolatileStateResults.php
@@ -7,6 +7,7 @@
 use Exception;
 use Generator;
 use Icinga\Application\Benchmark;
+use Icinga\Module\Icingadb\Common\Auth;
 use Icinga\Module\Icingadb\Common\IcingaRedis;
 use Icinga\Module\Icingadb\Model\Host;
 use Icinga\Module\Icingadb\Model\Service;
@@ -18,6 +19,8 @@
 
 class VolatileStateResults extends ResultSet
 {
+    use Auth;
+
     /** @var Resolver */
     private $resolver;
 
@@ -91,6 +94,8 @@ protected function applyRedisUpdates()
         $keys = [];
         $hostStateKeys = [];
 
+        $showSourceGranted = $this->getAuth()->hasPermission('icingadb/object/show-source');
+
         $states = [];
         $hostStates = [];
         foreach ($this as $row) {
@@ -112,6 +117,9 @@ protected function applyRedisUpdates()
             $states[bin2hex($row->id)] = $row->state;
             if (empty($keys)) {
                 $keys = $row->state->getColumns();
+                if (! $showSourceGranted) {
+                    $keys = array_diff($keys, ['check_commandline']);
+                }
             }
 
             if ($type === 'service' && $row->host instanceof Host) {