CVE-2025-59829
EPSS 0.06%Claude Code permission deny bypass through symlink
Published: 10/3/2025Modified: 10/13/2025
Also known as:GHSA-66m2-gx93-v996
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 packages (1)
- npm/@anthropic-ai/claude-codefrom 0, < 1.0.120
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |