DeepSeek V4.1 writes full Chrome V8 sandbox escape in 12 hours, sparking open-model crackdown fears
teortaxesTex · x · 2026-10-22
- User Exocija reports asking DeepSeek V4.1 Flash to build an exploit escaping Chrome's V8 sandbox; after 12 hours it produced a multi-stage memory corruption exploit achieving full process read/write (using Dsh with PTC mode).
- teortaxes fears a crackdown on open models is coming: these capabilities need heavy white-hat use to balance the PR, and attackers rarely have NVL72-class racks; he argues neoclouds should subsidize fuzzing efforts to keep open models alive.
Related event: DeepSeek V4.1 Writes Chrome V8 Sandbox Escape in 12 Hours(2 posts)→
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