A high-severity security flaw in Anthropic’s Claude Code AI coding agent allows malicious actors to bypass user-configured deny rules through a simple command-padding technique, exposing developers to credential theft and supply chain compromise. This vulnerability stems from a performance optimization that limits per-subcommand security analysis at 50 entries, causing the system to skip all deny-rule enforcement for commands exceeding this threshold. Developers should audit CLAUDE.md files in cloned repositories and treat unpatched builds as unreliable until the fix is deployed.
Read the full article at Cyber Security News
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