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Claude AI Vulnerability Allows Data Exfiltration via Code Interpreter

First seen 2 Dec 2025, 18:33 UTC

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ThreatCluster March 12, 2026 at 13:27 UTC

A vulnerability in Anthropic’s Claude AI has been identified, allowing attackers to exploit the code interpreter feature through indirect prompt injection. This exploit enables the extraction of sensitive user data, including chat histories and uploaded documents. Security researcher Johann Rehberger disclosed this issue in October 2025.

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