A big flaw was public ally posted today. Ultimately the attack is meant to target clients and break the encryption used between client and the wireless AP.
Main page: https://www.krackattacks.com/
Handy Ars article: https://arstechnica.com/information-technology/2017/10/severe-flaw-in-wpa2-protocol-leaves-wi-fi-traffic-open-to-eavesdropping/
The “good” news is that clients can be patched without the wireless AP being patched. Now to wait for patches.