GHSA-66m2-gx93-v996Low

Claude Code permission deny bypass through symlink

Published
October 3, 2025
Last Modified
October 13, 2025

🔗 CVE IDs covered (1)

📋 Description

Claude Code failed to account for symlinks when checking permission deny rules. If a user explicitly denied Claude Code access to a file and Claude Code had access to a symlink pointing to that file, it was possible for Claude Code to access the file.

Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to the latest version.

Thank you to https://hackerone.com/vinai for reporting this issue!

🎯 Affected products1

  • npm/@anthropic-ai/claude-code:< 1.0.120

🔗 References (3)