OpenAI Launches Patch the Planet to Fix Open-Source Vulnerabilities

OpenAI launched Patch the Planet, a program that pairs AI-assisted vulnerability research with human security engineering to help open-source maintainers move from finding flaws to deploying fixes. The program is part of OpenAI's broader Daybreak cybersecurity effort. OpenAI partnered with Trail of Bits, HackerOne, and Calif; Trail of Bits has dedicated security engineers working full time with Codex and GPT-5.5-Cyber across 19 open-source projects. The team has already identified hundreds of security issues and merged dozens of patches, with more undergoing coordinated disclosure. OpenAI also released GPT-5.5-Cyber through limited access for trusted defenders as part of the same expansion. Initial participating projects include cURL, NATS Server, pyca/cryptography, Sigstore, aiohttp, Go, freenginx, and Python. OpenAI is withholding exploit mechanics and project-specific details where disclosure is still underway.