GHSA-pmw4-pwvc-3hx2
Claude Code Research Preview has a Path Restriction Bypass which could allow unauthorized file access
Quick fix
GHSA-pmw4-pwvc-3hx2 — @anthropic-ai/claude-code: upgrade to the fixed version with the command below.
npm install @anthropic-ai/claude-code@0.2.111Details
Due to a path validation flaw using prefix matching instead of canonical path comparison, it was possible to bypass directory restrictions and access files outside the CWD. Successful exploitation depends on the presence of (or ability to create) a directory with the same prefix as the CWD and the ability to add untrusted content into a Claude Code context window.
Users on standard Claude Code auto-update received this fix automatically after release. Current users of Claude Code are unaffected, as versions prior to 1.0.24 are deprecated and have been forced to update.
Thank you to Elad Beber (Cymulate) for reporting this issue!
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Affected packages
0Fixed in: 0.2.111npm install @anthropic-ai/claude-code@0.2.111