OpenAI's GPT-5.6 Sol and Google's Gemini 4 Argon found critical PHP flaw affecting millions of websites

AI models from OpenAI and Google found a critical PHP vulnerability that could affect millions of websites worldwide, with GPT-5.6 Sol tracking down the flaw as part of OpenAI's Patch-the-Planet initiative. Security firm Wiz independently found the same flaws using its Wiz Atlas platform alongside Gemini 4 Argon and GPT-5.6 Sol, and the fix was coordinated over two months across five phases involving PHP developers, Wiz, Cloudflare, CISA and the White House. Wiz notes that large language models lower the barrier for attackers by automatically adjusting exploits across different PHP versions, configurations and memory layouts.