There are two jailbreak solutions for install Cydia iOS 8 – 8.1. Pangu8 & TaiG jailbreak bundled with Cydia installer ready to do that.
Tag: ios 8 – 8.1 jailbreak
Step guide for iOS 8 – 8.1 Pangu8 jailbreak. Using Pangu8, Cydia download & install is possible for iOS 8-8.1 running iPhone, iPad & iPod.