Researchers Exploit OpenAI API Flaw to Extract Hidden GPT-5.6 Reasoning Traces – CyberSecurityNews

Researchers have discovered a vulnerability in OpenAI’s API that allows extraction of hidden reasoning traces from GPT-5.6 models. The flaw potentially exposes internal model processing information that was not intended for external access. OpenAI has not yet publicly commented on the security issue or provided information regarding remediation efforts.

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