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Seven ChatGPT Vulnerabilities Expose User Data to Theft and Hijacking

Seven ChatGPT Vulnerabilities Expose User Data to Theft and Hijacking

First seen 2 Dec 2025, 18:33 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

Tenable Research identified seven critical vulnerabilities in OpenAI's ChatGPT models, including ChatGPT-4o and ChatGPT-5, that could allow attackers to steal personal data and hijack user conversations. The vulnerabilities involve indirect prompt injections and other techniques that could lead to data exfiltration and persistent malicious control over the AI's responses. Some issues remain unresolved, posing ongoing risks to users.

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