# pinauten/Fugu15

Fugu15 is a semi-untethered permasigned jailbreak for iOS 15

Repository: https://github.com/pinauten/Fugu15
Canonical: https://ross.abutalabs.com/products/fugu15
Language: C
License: MIT
License Family: permissive
Archived: true
Last push: 2023-09-24T18:42:30+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 1402, "days_push": 1074, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1145, forks 124 (observed 2026-08-28T04:03:45.563447+00:00)

## What it is
Fugu15 is a semi-untethered, permasigned jailbreak for iOS 15 that combines a code-signing bypass, kernel exploit, kernel PAC bypass, and PPL bypass. It can be installed directly via Safari without a computer and ships with the iDownload shell, but does not support tweak injection.

## Use cases
- jailbreak an iPhone running iOS 15
- install a jailbreak via Safari without a computer
- gain root access on arm64e iOS devices
- access a root shell on iOS via iDownload
- research iOS kernel exploits and PPL bypasses
- permanently sign a jailbreak app on iOS 15

## When to choose
- you have an arm64e device on a supported iOS 15.x version and want a semi-untethered jailbreak
- you want to install a jailbreak over the network via Safari without connecting to a computer
- you are a security researcher studying kernel, PAC, or PPL bypass techniques on iOS 15

## When to avoid
- you need tweak injection or Cydia/Sileo tweak support, since Fugu15 ships no tweak injection library
- your device is not arm64e (e.g. iPhone X or older)
- you are on iOS versions outside the tested 15.x range
- you want a fully untethered or one-click consumer jailbreak with broad device support

## Facets
- artifact type: application
- maturity: maintenance
- function: security, reverse-engineering
- domain: security, operating-systems
- platform: cpp
- tags: jailbreak, ios-15, kernel-exploit, permasigned, ppl-bypass, pac-bypass, code-signing-bypass, arm64e, ios, macos

## Member repositories
- pinauten/Fugu15 (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:45.563447+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 2026-08-30T06:34:40.509310+00:00, confidence not recorded.
  - readme: https://github.com/pinauten/Fugu15 (fetched 2026-08-28T04:03:45.563447+00:00, sha 56bb871ec40c)
- Data as of 2026-08-30T08:39:29.467469+00:00.