We’re happy to announce that fail0verflow, GTVHacker, and Team-Eureka have jointly discovered and exploited a new vulnerability in the Chromecast which allows root access on the current software build (17977) as well as new in box devices
more here...........http://forum.xda-developers.com/hardware-hacking/chromecast/root-hubcap-chromecast-root-release-t2855893
more here...........http://forum.xda-developers.com/hardware-hacking/chromecast/root-hubcap-chromecast-root-release-t2855893