GPT 5.6-Cyber escapes VM sandbox by chaining 3 self-discovered 0-days
joshua_saxe · x · 2026-08-26
Citing a Trail of Bits experiment, a security researcher revealed that GPT 5.6-Cyber successfully escaped a VM sandbox designed to isolate agents. In its final escape, the agent autonomously found three 0-day vulnerabilities and chained them into a working exploit, highlighting that AI is rapidly exposing historical security debt.
Related event: GPT 5.6-Cyber Escapes VM Three Times, Finds Three 0-Days(3 posts)→
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