--- title: "The ns2jb Exploit Claims to Run Native Code on Switch 2 Firmware 23.0.1 Without a Modchip" description: "A developer named pepsipu is said to have built a tethered Switch 2 jailbreak that modded Mario Kart World with Hatsune Miku and Peter Griffin." url: https://gaming.skoop.news/the-switch-2-has-been-jailbroken-for-the-first-time-c3440d/ published: 2026-10-23T03:38:21.382734-04:00 modified: 2026-10-23T03:38:21.382734-04:00 section: "Gaming & Streamers" publisher: "skoop.news" language: en keywords: ["Nintendo", "Mario Kart World", "Hatsune Miku", "Peter Griffin", "Angry Birds", "Centro Leaks", "Developer Gezine", "Switch", "SmileBASIC", "SmileBoom"] hashtags: ["#MarioKartWorld", "#HatsuneMiku", "#PeterGriffin", "#gaming", "#gamingclips"] image: https://thumb.wikimedia.org/wikipedia/commons/thumb/f/fa/G2_Esports_on_the_2025_Mid-Season_Invitational_stage_%28Furia_vs_G2%29.jpg/1280px-G2_Esports_on_the_2025_Mid-Season_Invitational_stage_%28Furia_vs_G2%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=thumbnail --- # The ns2jb Exploit Claims to Run Native Code on Switch 2 Firmware 23.0.1 Without a Modchip > A developer named pepsipu is said to have built a tethered Switch 2 jailbreak that modded Mario Kart World with Hatsune Miku and Peter Griffin. Published 2026-10-23 · Gaming & Streamers, [skoop.news](https://skoop.news/) ## In brief - A Switch 2 exploit called ns2jb is said to work on firmware 23.0.1 without a hardware modchip, and it is claimed to have been developed by developer pepsipu. [[1]](https://gameranx.com/updates/id/564467/article/nintendos-switch-2-console-has-been-jailbroken-in-record-time-but-its-software-only/) [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) - The developer says ns2jb allows native code to run with access useful for homebrew development, game research, save backups, and modding. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) - The exploit is tethered: it does not survive a reboot and does not provide a persistent custom firmware solution. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) ## A Switch 2 jailbreak with no modchip A Switch 2 exploit called ns2jb is said to work on firmware 23.0.1 without a hardware modchip, and it is claimed to have been developed by developer pepsipu. [[1]](https://gameranx.com/updates/id/564467/article/nintendos-switch-2-console-has-been-jailbroken-in-record-time-but-its-software-only/) [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) The publication reached out to Nintendo for comment. [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) The new jailbreak is also said to be able to evade Nintendo's online checks. [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) ## What the exploit does The developer says ns2jb allows native code to run with access useful for homebrew development, game research, save backups, and modding. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) The exploit eventually allowed native code execution with higher system permissions. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) The hack reportedly took about two weeks of what the creator calls substantial effort. [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) ## Tethered, so not custom firmware The exploit is tethered: it does not survive a reboot and does not provide a persistent custom firmware solution. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) The jailbreak is not yet custom firmware because the exploit is tethered and must be performed every time. [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) ## The SmileBASIC 4 entry point The exploit takes advantage of an eShop title, SmileBoom's SmileBASIC 4. [[1]](https://gameranx.com/updates/id/564467/article/nintendos-switch-2-console-has-been-jailbroken-in-record-time-but-its-software-only/) SmileBoom has been making SmileBASIC for Nintendo platforms since 2011, starting on the 3DS. [[1]](https://gameranx.com/updates/id/564467/article/nintendos-switch-2-console-has-been-jailbroken-in-record-time-but-its-software-only/) SmileBoom may have to stop publishing SmileBASIC 4 because of the exploit. [[1]](https://gameranx.com/updates/id/564467/article/nintendos-switch-2-console-has-been-jailbroken-in-record-time-but-its-software-only/) ## The Mario Kart World demo The demonstration modified Mario Kart World to add custom characters including Cinnamoroll, Hatsune Miku, Peter Griffin, and Red from Angry Birds. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) Centro Leaks reposted a video clip in which Peter Griffin and Hatsune Miku are shown modded into Mario Kart World. [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) Developer Gezine revealed a separate universal exploit affecting the original Switch and Switch 2. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) He says he spoke with pepsipu and that the work seems legit. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) ## How Nintendo has handled this before The original Switch 1 was cracked via hardware in a way Nintendo could not patch out, and Nintendo could only fix it in further manufacturing. [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) Nintendo came down hard on people selling pre-jailbroken Switch consoles. [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) ## What it means for you If you use a Switch 2 on firmware 23.0.1, this is the version the exploit is said to work on. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) It does not need a hardware modchip, but it must be performed every time because it is tethered. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) [[3]](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) If you want a persistent custom firmware, ns2jb does not provide one. [[2]](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) If you own SmileBASIC 4, note that SmileBoom may have to stop publishing it because of the exploit. [[1]](https://gameranx.com/updates/id/564467/article/nintendos-switch-2-console-has-been-jailbroken-in-record-time-but-its-software-only/) ## Sources 1. [Nintendo’s Switch 2 Console Has Been Jailbroken In Record Time – But It’s Software Only](https://gameranx.com/updates/id/564467/article/nintendos-switch-2-console-has-been-jailbroken-in-record-time-but-its-software-only/) — Gameranx 2. [The Nintendo Switch 2 has reportedly been jailbroken through a software-only exploit](https://www.notebookcheck.net/The-Nintendo-Switch-2-has-reportedly-been-jailbroken-through-a-software-only-exploit.1431060.0.html) — Notebookcheck 3. [The Switch 2 Has Been Jailbroken For The First Time](https://kotaku.com/nintendo-switch-2-jailbreak-hack-exploit-piracy-homebrew-emulation-modding-2000748784) — Kotaku Image: Photo (illustrative): Yuet Man Lee / Wikimedia Commons, CC BY-SA 4.0 (https://commons.wikimedia.org/wiki/File:G2_Esports_on_the_2025_Mid-Season_Invitational_stage_(Furia_vs_G2).jpg) --- Written from the sources above and checked twice (rules and an independent model) before publishing. How we work: https://skoop.news/how-we-work/ · Corrections: https://skoop.news/corrections/