GitHub Advisoryadvisory · npm
GHSA-66m2-gx93-v996 Claude Code permission deny bypass through symlink
LOW
Official page ↗
- Aliases
- CVE-2025-59829
- Ecosystem
- npm
- Packages
- @anthropic-ai/claude-code
- Severity
- Low
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-61
- Reviewed
- 2025-10-03
Affected packages
• npm @anthropic-ai/claude-code: < 1.0.120 → fixed in 1.0.120
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!
Related
Alias · CVE (1)
- CVE-2025-59829 Claude Code is an agentic coding tool. vulnerability
Weakness · CWE (1)
- CWE-61 UNIX Symbolic Link (Symlink) Following weakness