Verizon iPhone 4 iOS 4.2.6 has been jailbroken using GreenPois0n RC5. Many iphone 4 users have confirmed this via twitter, including Pod2g from Chronic Dev Team who has also confirmed the information to be legit.
Earleir MuscleNerd has confirmed that Verizon iPhone 4 can be jailbroken with Limera1n on launch day or early if you can get one. But GreenPosi0n has already jailbroken it before 10 February. Hopefully, Limera1n will also be able to jailbreak iOS 4.2.6 on Verizon iPhone 4.
You can jailbreak Verizon iPhone 4 iOS 4.2.6 with the updates GreenPois0n RC5. There are few people who have received their Verizon iPhone 4. If yours is on the way, don’t worry GreenPois0n is ready for you to jailbreak your iPhone 4.