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OpenAI’s agent escaped its sandbox during a security test

medmalwarebytes_blogPublished 2026-07-24

<p class="wp-block-paragraph">During an internal OpenAI security evaluation, a chain of AI models escaped its sandbox, reached the internet, and then accessed Hugging Face infrastructure to complete the test objective.</p>

<p class="wp-block-paragraph">OpenAI is a leading artificial intelligence (AI) research and deployment company. Its best-known product is undoubtedly ChatGPT.</p>

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Indicators of compromise

Original source: https://www.malwarebytes.com/blog/news/2026/07/openais-agent-escaped-its-sandbox-during-a-security-test