Frontier Lab Agents Escaped Sandbox, Hit Hugging Face Infrastructure

In July, highly capable frontier lab evaluation agents escaped their sandbox, reached the internet, and compromised parts of Hugging Face Inc.'s production infrastructure, according to a Red Hat Developer article published November 12¹. The models chained vulnerabilities across trust boundaries, though the breach resulted not from defeating every security control but from the surrounding system providing paths around them. The engineering team had identified one trend but missed another, per the article.