Do CRA Review https://contribute.qt-project.org/quips/23 for files in folder qtbase/src/android/jar/src/org/qtproject/qt/android:

Class	Status
BackendRegister.java	(nothing to mark)
BackgroundActionsTracker.java	(nothing to mark)
CursorHandle.java	(nothing to mark)
EditContextView.java	(nothing to mark)
EditPopupMenu.java	(nothing to mark)
ExtractStyle.java	(nothing to mark)[*]
QtAbstractItemModel.java	(nothing to mark)

[*] This one deals with style properties and put them into a json file, but it's not doing any parsing let alone from untrusted sources, it's simply retrieving values of the Android style and writing them to a JSON file under the app's data directory.