Security researcher Johann Rehberger reported a 60-80% code execution success rate against Claude Code Opus 5's Auto Mode, bypassing a Trajectory Labs eval that had rated it at 0.00% prompt injection …
Security researcher Johann Rehberger published a multi-stage attack on August 26 achieving remote code execution against Claude Code Opus 5 in Auto Mode with a 60 to 80 percent success rate, exploitin…
A researcher demonstrated a prompt injection attack achieving 60-80% success against Anthropic's Claude Code Opus 5 in Auto Mode, contradicting a third-party evaluation that reported a 0.00% attack su…
Anthropic's Claude Code Opus 5, released in 2026, introduces an Auto Mode that autonomously executes multi-step coding tasks, but security researchers at Embrace The Red have demonstrated that the mod…