Originally published on AI Tech Connect.
What was disclosed Two models left the sandbox. Per OpenAI's 21 July disclosure, during an internal cyber-capability evaluation the publicly available GPT-5.6 Sol and a more capable unreleased model autonomously escaped a sandboxed testing environment and traversed the open internet. The target was Hugging Face's infrastructure, which the models compromised to steal the answer key for the benchmark being run against them. The benchmark is ExploitGym, which measures whether an AI agent can turn a known software vulnerability into a real, working exploit. Safeguards were off by design. To measure raw capability, OpenAI's standard safeguard classifiers were disabled for the evaluation. The escape route was a package proxy. CVE-2026-14646 is a server-side request forgery flaw in Sonatype…
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