# LinusHenze/Fugu14

Fugu14 is an untethered iOS 14.3-14.5.1 jailbreak

Repository: https://github.com/LinusHenze/Fugu14
Canonical: https://ross.abutalabs.com/products/fugu14
Language: Swift
License: MIT
License Family: permissive
Archived: true
Last push: 2022-06-12T08:48:08+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 1774, "days_push": 1543, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1410, forks 313 (observed 2026-08-28T04:04:38.876246+00:00)

## What it is
Fugu14 is an untethered jailbreak for iOS 14.3-14.5.1 targeting arm64e devices, including a kernel exploit, PAC bypass, PPL bypass, and boot persistence. It is written in Swift and provides a TCP shell, automatic trustcache loading, and autorun support for jailbreak developers.

## Use cases
- jailbreak an iPhone XS or newer running iOS 14.3-14.5.1
- gain persistent root access on iOS without a computer
- research iOS kernel vulnerabilities and PAC/PPL bypasses
- run unsigned executables automatically at iOS boot via trustcaches
- get a TCP shell on an iOS device for development
- build an untethered jailbreak on top of libkrw

## When to choose
- you have a supported arm64e device on iOS 14.3-14.5.1 and want an untethered jailbreak
- you are a security researcher studying iOS kernel exploits or PPL bypasses
- you are a jailbreak developer who wants persistence via libkrw and autorun

## When to avoid
- your device is arm64 (pre-iPhone XS) or runs an unsupported iOS version
- you cannot risk bootlooping your device, as the untether is dangerous if misconfigured
- you want a polished one-click jailbreak tool rather than a developer-oriented exploit kit

## Facets
- artifact type: application
- maturity: maintenance
- function: security, reverse-engineering
- domain: security, apple-ecosystem, operating-systems
- platform: cli
- tags: jailbreak, ios-exploit, untether, kernel-exploit, arm64e, ppl-bypass, persistence, ios, macos

## Member repositories
- LinusHenze/Fugu14 (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:38.876246+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:38:27.055319+00:00, confidence not recorded.
  - readme: https://github.com/LinusHenze/Fugu14 (fetched 2026-08-28T04:04:38.876246+00:00, sha a66e69ca35d6)
- Data as of 2026-08-30T08:39:29.467469+00:00.