diff --git a/src/applications/maniphest/controller/ManiphestTaskDetailController.php b/src/applications/maniphest/controller/ManiphestTaskDetailController.php
index f544fa6b2c..34c7f54c11 100644
--- a/src/applications/maniphest/controller/ManiphestTaskDetailController.php
+++ b/src/applications/maniphest/controller/ManiphestTaskDetailController.php
@@ -87,12 +87,25 @@ final class ManiphestTaskDetailController extends ManiphestController {
       ->addPropertySection(pht('Description'), $description)
       ->addPropertySection(pht('Details'), $details);
 
+    $graph_limit = 100;
     $task_graph = id(new ManiphestTaskGraph())
       ->setViewer($viewer)
       ->setSeedPHID($task->getPHID())
+      ->setLimit($graph_limit)
       ->loadGraph();
     if (!$task_graph->isEmpty()) {
-      $graph_table = $task_graph->newGraphTable();
+      if ($task_graph->isOverLimit()) {
+        $message = pht(
+          'Task graph too large to display (this task is connected to '.
+          'more than %s other tasks).',
+          $graph_limit);
+        $message = phutil_tag('em', array(), $message);
+        $graph_table = id(new PHUIPropertyListView())
+          ->addTextContent($message);
+      } else {
+        $graph_table = $task_graph->newGraphTable();
+      }
+
       $view->addPropertySection(pht('Task Graph'), $graph_table);
     }
 
diff --git a/src/infrastructure/graph/PhabricatorObjectGraph.php b/src/infrastructure/graph/PhabricatorObjectGraph.php
index 7a3790dea4..5e25cd8e33 100644
--- a/src/infrastructure/graph/PhabricatorObjectGraph.php
+++ b/src/infrastructure/graph/PhabricatorObjectGraph.php
@@ -9,6 +9,7 @@ abstract class PhabricatorObjectGraph
   private $seedPHID;
   private $objects;
   private $loadEntireGraph = false;
+  private $limit;
 
   public function setViewer(PhabricatorUser $viewer) {
     $this->viewer = $viewer;
@@ -23,6 +24,15 @@ abstract class PhabricatorObjectGraph
     return $this->viewer;
   }
 
+  public function setLimit($limit) {
+    $this->limit = $limit;
+    return $this;
+  }
+
+  public function getLimit() {
+    return $this->limit;
+  }
+
   abstract protected function getEdgeTypes();
   abstract protected function getParentEdgeType();
   abstract protected function newQuery();
@@ -44,6 +54,16 @@ abstract class PhabricatorObjectGraph
     return (count($this->getNodes()) <= 2);
   }
 
+  final public function isOverLimit() {
+    $limit = $this->getLimit();
+
+    if (!$limit) {
+      return false;
+    }
+
+    return (count($this->edgeReach) > $limit);
+  }
+
   final public function getEdges($type) {
     $edges = idx($this->edges, $type, array());
 
@@ -72,6 +92,10 @@ abstract class PhabricatorObjectGraph
   }
 
   final protected function loadEdges(array $nodes) {
+    if ($this->isOverLimit()) {
+      return array_fill_keys($nodes, array());
+    }
+
     $edge_types = $this->getEdgeTypes();
 
     $query = id(new PhabricatorEdgeQuery())