0sec Labs · AI Security Harness

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0sec Labs has open-sourced 0, a software harness that wraps LLMs and security tools to run vulnerability investigations, code review, pentesting, reverse engineering and fix generation against authorised targets. It is released under MIT OR Apache-2.0 as a research preview, with a local browser console, a headless CLI and an MCP server, and works with 14 listed model providers. The team reports 93/95 (97.9%) on XBOW web CTFs and 36/40 on Cybench, but these scores are self-reported and not pass@1.