diff --git a/addons/web/static/src/js/owl_compatibility.js b/addons/web/static/src/js/owl_compatibility.js
index aa2d2e20751..bd46a23c8fe 100644
--- a/addons/web/static/src/js/owl_compatibility.js
+++ b/addons/web/static/src/js/owl_compatibility.js
@@ -375,6 +375,17 @@ odoo.define('web.OwlCompatibility', function () {
          */
         on_attach_callback() {
             function recursiveCallMounted(component) {
+                if (
+                    component.__owl__.status !== 2 /* RENDERED */ &&
+                    component.__owl__.status !== 3 /* MOUNTED */ &&
+                    component.__owl__.status !== 4 /* UNMOUNTED */
+                ) {
+                    // Avoid calling mounted on a component that is not even
+                    // rendered. Doing otherwise will lead to a crash if a
+                    // specific mounted callback is legitimately relying on the
+                    // component being mounted.
+                    return;
+                }
                 for (const key in component.__owl__.children) {
                     recursiveCallMounted(component.__owl__.children[key]);
                 }