Modder exploits Nintendo Switch 2 via legacy game code and AI assistance

A hacker has shown that Nintendo's highly‑awaited Switch 2 can be breached, presenting a functional jailbreak that executes a custom‑built Mario Kart World on the console.

The attack relies on source code lifted from a legacy Nintendo game, which the modder submitted to OpenAI's Codex—an AI capable of producing code fragments. Using the AI‑generated result, the attacker circumvented the system’s protections and injected unsigned code.

In the live showcase, the altered title displayed a diverse lineup of racers such as Sanrio’s Cinnamoroll, the red Angry Bird, the cartoon sitcom figure Peter Griffin, and Minecraft’s Steve. Their presence underscored the creative freedom a jailbroken platform can grant to fan‑crafted material.

The breakthrough reignites the historic friction between Nintendo and the home‑brew scene. Previous Switch models faced comparable exploits that enabled emulators and unofficial apps, leading Nintendo to roll out firmware patches and occasionally take legal steps against vendors of hacking utilities.

Analysts point out that AI instruments such as Codex might speed up the identification of flaws in various consumer devices. Automating portions of code creation can reduce the technical hurdle required to craft working exploits.

Nintendo has yet to release an official comment on the incident. Experts anticipate a security patch will appear in forthcoming firmware releases, and the firm is likely watching for possible copyright or trademark violations arising from the illicit inclusion of third‑party characters.