diff --git a/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java b/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java
index 6fce21470f..6f720629fe 100644
--- a/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java
+++ b/libraries/session/src/main/java/androidx/media3/session/MediaSessionImpl.java
@@ -210,6 +210,7 @@ import org.checkerframework.checker.initialization.qual.Initialized;
       broadcastReceiver = new MediaButtonReceiver();
       IntentFilter filter = new IntentFilter(Intent.ACTION_MEDIA_BUTTON);
       filter.addDataScheme(castNonNull(sessionUri.getScheme()));
+      // TODO(b/197817693): Explicitly indicate whether the receiver should be exported.
       context.registerReceiver(broadcastReceiver, filter);
     } else {
       // Has MediaSessionService to revive playback after it's dead.
diff --git a/libraries/ui/src/main/java/androidx/media3/ui/PlayerNotificationManager.java b/libraries/ui/src/main/java/androidx/media3/ui/PlayerNotificationManager.java
index f5c5009c2e..9502581c05 100644
--- a/libraries/ui/src/main/java/androidx/media3/ui/PlayerNotificationManager.java
+++ b/libraries/ui/src/main/java/androidx/media3/ui/PlayerNotificationManager.java
@@ -1164,6 +1164,7 @@ public class PlayerNotificationManager {
     Notification notification = builder.build();
     notificationManager.notify(notificationId, notification);
     if (!isNotificationStarted) {
+      // TODO(b/197817693): Explicitly indicate whether the receiver should be exported.
       context.registerReceiver(notificationBroadcastReceiver, intentFilter);
     }
     if (notificationListener != null) {