GHSA-66m2-gx93-v996

ghsaUSosv

Claude Code permission deny bypass through symlink

view advisory published 2025-10-03Licence: CC-BY-4.0

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!

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2025-59829USmedium6.5—
Claude Code is an agentic coding tool. Versions below 1.0.120 failed to account for symlinks when checking permission deny rules. If a user explicitly denied Claude Code access to…
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