zeroxjf/cyanide

Cyanide is an iPhone and iPad app that lets you apply system-level customizations, called tweaks, without a traditional jailbreak. It works by taking advantage of two specific kernel security vulnerabilities in iOS (CVE-2025-43510 and CVE-2025-43520) that were present in iOS 17.0 through 18.7.1 and iOS 26.0 through 26.0.1. Apple patched those bugs in iOS 18.7.2 and 26.1, so the app only works within that version window. A19 and M5 devices are not supported. The app is a fork of an existing project called darksword-kexploit-fun, restructured with a two-tab interface: an installer tab for applying tweaks and a settings tab for configuration. It does not include the browser-delivered parts of the original exploit chain, focusing instead on the native kernel stages wrapped in an Objective-C app. The tweaks available cover a range of system modifications. Status bar additions can overlay battery temperature, free memory, and network speed. Home screen layout tweaks let you change dock icon count, grid columns and rows, icon scale, and padding. A performance tweak called Powercuff simulates thermal pressure to underclock the CPU and GPU. Several SpringBoard tweaks can remove the App Library, disable icon animations, make the display wake instantly, enable double-tap to lock, and turn off over-the-air update prompts. Beta tweaks include a notification grouping overlay, an icon theming engine that swaps icons by bundle ID, and an Apple Watch pairing range override. Experimental tweaks, gated to Patreon supporters, include a split-view mode for running two apps side by side on iPhone, live numeric signal strength readouts, and a typing indicator banner. The open-source portions of the project are licensed under AGPL-3.0, while the experimental tweak implementations in a private submodule are all rights reserved and distributed only in compiled form.