Latest Update
2026-10-13 09:43 UTC

XBOW: GPT-5.6 Sol Finds Chrome Full-Chain Exploit

XBOW: GPT-5.6 Sol Finds Chrome Full-Chain Exploit

Greg Brockman reports XBOW used GPT-5.6 Sol over six days and $40,000 of compute to win Google's first 2026 full-chain Chrome bounty worth $250,000 for a flaw affecting an estimated one billion users.

Source

Analysis

XBOW used GPT-5.6 Sol to discover a critical full-chain vulnerability in Chrome, securing Google’s first $250,000 bounty under 2026 rules for an exploit that would affect an estimated one billion users on Windows.


Greg Brockman

@gdb

President & Co-Founder of OpenAI