diff --git a/src/widgets/widgets/qmenu.cpp b/src/widgets/widgets/qmenu.cpp
index ac474c9babc..861af005e58 100644
--- a/src/widgets/widgets/qmenu.cpp
+++ b/src/widgets/widgets/qmenu.cpp
@@ -1387,9 +1387,18 @@ bool QMenuPrivate::mouseEventTaken(QMouseEvent *e)
 void QMenuPrivate::activateCausedStack(const QList<QPointer<QWidget>> &causedStack, QAction *action,
                                        QAction::ActionEvent action_e, bool self)
 {
-    QBoolBlocker guard(activationRecursionGuard);
+    Q_Q(QMenu);
+    // can't use QBoolBlocker here
+    const bool activationRecursionGuardReset = activationRecursionGuard;
+    activationRecursionGuard = true;
+    QPointer<QMenu> guard(q);
     if (self)
         action->activate(action_e);
+    if (!guard)
+        return;
+    auto boolBlocker = qScopeGuard([this, activationRecursionGuardReset]{
+        activationRecursionGuard = activationRecursionGuardReset;
+    });
 
     for(int i = 0; i < causedStack.size(); ++i) {
         QPointer<QWidget> widget = causedStack.at(i);
@@ -1465,9 +1474,10 @@ void QMenuPrivate::activateAction(QAction *action, QAction::ActionEvent action_e
 #endif
     }
 
-
+    QPointer<QMenu> thisGuard(q);
     activateCausedStack(causedStack, action, action_e, self);
-
+    if (!thisGuard)
+        return;
 
     if (action_e == QAction::Hover) {
 #if QT_CONFIG(accessibility)
diff --git a/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp b/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp
index 31a3addd44f..a7563bfa26e 100644
--- a/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp
+++ b/tests/auto/widgets/widgets/qmenu/tst_qmenu.cpp
@@ -110,6 +110,7 @@ private slots:
     void tearOffMenuNotDisplayed();
     void QTBUG_61039_menu_shortcuts();
     void screenOrientationChangedCloseMenu();
+    void deleteWhenTriggered();
 
 protected slots:
     void onActivated(QAction*);
@@ -2011,5 +2012,22 @@ void tst_QMenu::screenOrientationChangedCloseMenu()
      QTRY_COMPARE(menu.isVisible(),false);
 }
 
+/*
+    Verify that deleting the menu in a slot connected to an
+    action's triggered signal doesn't crash.
+    QTBUG-106718
+*/
+void tst_QMenu::deleteWhenTriggered()
+{
+    QPointer<QMenu> menu = new QMenu;
+    QAction *action = menu->addAction("Action", [&menu]{
+        delete menu;
+    });
+    menu->popup(QGuiApplication::primaryScreen()->availableGeometry().center());
+    menu->setActiveAction(action);
+    QTest::keyClick(menu, Qt::Key_Return);
+    QTRY_VERIFY(!menu);
+}
+
 QTEST_MAIN(tst_QMenu)
 #include "tst_qmenu.moc"