Vuln: Website Hijacks Claude Code Opus 5 for System Compromise

wunderwuzzi23 · x · 2026-08-28

A security researcher disclosed an attack chain demonstrating that a website can hijack Claude Code Opus 5's Auto Mode, leading to a full system compromise. The thread highlights that security invariants are not optional and provides detailed technical analysis.

Related event: Researcher Demos Website-Based Hijack of Claude Code Opus 5 Auto Mode(3 posts)→

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