What is the Claude Code vulnerability?

It's a flaw where commands after the 50th subcommand skip intensive security checks, prompting user approval instead—potentially greenlighting attacks.

How do you exploit the Claude Code security bypass?

Hide malicious commands after 50 legit ones in a repo's CLAUDE.md file; users approve unwittingly during builds, leaking creds.

Has Anthropic fixed the Claude Code vulnerability?

They have a fix (tree-sitter parser) in the code, but it's not enabled in public versions yet.

🤝 Community & Governance

Claude Code's Leaked Secrets: A 50-Command Bypass That Slips Past Safeguards

Everyone thought the Claude Code source leak was contained damage. Wrong. It just unmasked a vulnerability that could poison your repos and snag credentials.

theAIcatchup Apr 09, 2026 4 min read 10 views

Code snippet highlighting Claude Code vulnerability in leaked source with security bypass annotation

⚡ Key Takeaways

Claude Code skips security checks after 50 subcommands, relying on user approval. 𝕏
Anthropic's tree-sitter fix exists but remains disabled in public builds. 𝕏
Attackers can exploit via poisoned CLAUDE.md files in seemingly legit repos. 𝕏

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theAIcatchup

Community-driven. Code-first.

#AI supply chain attack #AI vulnerability #Anthropic #Anthropic security #Claude Code #Claude Code vulnerability #security bypass #tree-sitter parser

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Originally reported by InfoWorld

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