iOS 12.0/iOS 12.1.2 jailbreak tool OsirisJailbreak12 has been launched, this most native iOS12 jailbreak tool is developed by the GeoSn0w developer, not for general jailbreak users, this is an incomplete developer-only jailbreak but this also means that iOS 12 has the first jailbreak tool, ready to let iOS 12 play more.
The OsirisJailbreak12 jailbreak tool is not a perfect jailbreak. It needs to be activated again through the jailbreak tool after the same reboot. Currently, this tool does not integrate Cydia. It is just a jailbreak tool for obtaining root privileges. It is usually not recommended to include Cydia. This jailbreak was developed using CVE-2019-6225 vulnerability that has been patched on iOS 12.1.3.
An incomplete iOS 12 Jailbreak. For now it only runs the exploit, gets tfp0, gets ROOT, escapes the SandBox, writes a test file to prove the sandbox was escaped then resprings. Feel free to build on top of it as long as you respect the GPLv3 license.
Older (4K) devices are not supported for now. 16K devices are A12 is experimental – may not work..
[RELEASE] Osiris Developer #Jailbreak for #iOS 12. No remount and no CoreTrust bypass yet. It gets root, escapes the sandbox and resprings. Feel free to build on top of it. Not for the general public!https://t.co/SzvBMLajZN pic.twitter.com/QVTdY2JMPQ
— GeoSn0w (@FCE365) January 31, 2019
You can get OsirisJailbreak12 tool here.