Researchers have disclosed a vulnerability in the OpenAI API that reveals hidden reasoning traces by exploiting conversation compaction. This technique, named “Compaction Smuggling,” bypassed existing safeguards and could allow for the extraction of valuable training material from advanced models. According to Xint, OpenAI confirmed the issue, implemented an undisclosed fix on October 23, 2026, and […]
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Researchers Discover OpenAI API Vulnerability That Leaks Hidden AI Reasoning Traces