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Cursor AI Prompt Injection Chains to Shell Access

Cursor AI Prompt Injection Chains to Shell Access

ATLAS OWASP CRITICAL Active exploitation · Immediate action required ▲ 8.5 SecurityWeek

A chained vulnerability in Cursor AI—a widely-used AI-powered code editor—allowed attackers to combine indirect prompt injection with a sandbox escape and the application's built-in remote tunnel feature to achieve arbitrary shell access on developer machines. The attack chain is particularly significant because it weaponises Cursor's own legitimate remote-access infrastructure, meaning malicious commands could blend into normal developer workflows. Developers using Cursor's AI features against untrusted code or repositories are at elevated risk of full host compromise.

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