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

> Source: <https://the-decoder.com/openais-gpt-5-6-sol-and-gemini-4-argon-discovered-the-critical-php-vulnerability-affecting-millions-of-websites/>
> Published: 2026-10-21 19:45:01+00:00

OpenAI's GPT-5.6 Sol discovered a critical PHP vulnerability as part of the Patch the Planet initiative that could affect millions of websites. Security firm Wiz independently found the same flaw using Google's Gemini 4 Argon. OpenAI warns that the same AI capabilities that find vulnerabilities can help attackers too.

The article [OpenAI's GPT-5.6 Sol and Google's Gemini 4 Argon found critical PHP flaw affecting millions of websites](https://the-decoder.com/openais-gpt-5-6-sol-and-gemini-4-argon-discovered-the-critical-php-vulnerability-affecting-millions-of-websites/) appeared first on [The Decoder](https://the-decoder.com).