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GPT-5.5-Cyber built a zlib fuzzing lab in a day

medtrailofbitsPublished 2026-07-02

<p>We’re running <a href="https://trailofbits.com/patch-the-planet">Patch the Planet</a>, an ongoing collaboration with OpenAI that pairs Trail of Bits engineers directly with more than 30 open-source projects. Its goal is to front-run a serious problem facing open-source maintainers: highly capable models like GPT-5.5-Cyber will soon create a firehose of bug reports, and OSS maintainers are alrea

MITRE ATT&CK techniques

Indicators of compromise

Original source: https://blog.trailofbits.com/2026/07/02/field-reports-from-patch-the-planet/