Switch 2 Jailbreak Scene Accelerates with YouTube Port and Untethered Exploit Rumors

Key points

• A user named Izmysh demonstrated running YouTube on the Switch 2 using the open-source VacuumTube project via the ns2jb jailbreak.
• Security researcher Gezine is reportedly developing an untethered exploit that plants the chain in savedata, allowing userland access on boot without external devices.
• The initial exploit, developed by pepsipu, relies on a 32-bit integer overflow in SmileBASIC 4 and requires a tethered connection to a PC for each session.
• Early attempts to dump game files, including assets from Mario Kart World and The Duskbloods, have begun, though verification is pending due to Nintendo's anti-piracy measures.
• Nintendo removed SmileBASIC 4 from the eShop following the exploit's release, and future firmware updates may patch the vulnerability.

Background

This development follows the release of the first software-only jailbreak for the Switch 2 on October 22, 2026. That initial exploit, named ns2jb, was developed by Sammy Hajhamid (pepsipu) with assistance from OpenAI's Codex AI. It targeted a 32-bit integer overflow in the SmileBASIC 4 interpreter, allowing homebrew execution but requiring a tethered connection and manual re-initialization after every reboot. The current developments represent the first significant expansion of this capability, moving from basic homebrew execution to specific application ports and the pursuit of untethered access.

How outlets are covering it

Wccftech emphasizes the rapid pace of the homebrew scene, highlighting the YouTube port and the potential for game modding and PC ports via file dumps. ExtremeTech focuses on the technical limitations of the current exploit, noting that it is temporary and does not provide full kernel access or custom firmware installation. Ars Technica's coverage was obscured by a cookie consent banner, but its headline suggests a broader security concern regarding the console's integrity. All sources agree that the current exploit is tethered, but they differ on the immediacy of the untethered solution, with Wccftech citing Gezine's work as a likely next step.

Why it matters

The transition from tethered to untethered exploits could fundamentally change the Switch 2's ecosystem, enabling permanent custom firmware, emulators, and extensive modding without the need for external hardware. This mirrors the trajectory of previous console generations and could lead to a more vibrant homebrew community, potentially impacting Nintendo's software sales and security posture.

What to watch

Watch for the release of Gezine's untethered exploit, which would allow userland access on boot. Monitor Nintendo's response to the SmileBASIC 4 removal and any subsequent firmware updates that may patch the 32-bit integer overflow. Expect further verification of game file dumps and potential modding tools for titles like Mario Kart World.