Was Beowulf's tragic flaw greed hubris or lust?

Beowulf's tragic flaw is Hubris. It is foreshadowed throughout the epic, from the stories of his youth to his conversations with Hrothgar in the hall of Heorot. Greed and lust, that is, his intense need for recognition from his fellow kinsmen and eternal glory, are products of his hubris rather than separate characteristics. With that said, all three vices are at work in the play but hubris is the driving force. See the related linkssection for more in depth analysis of the subject.