AnthropicGHSA-4q92-rfm6-2cqx
Permission Deny Bypass Through Symbolic Links
Low2.3CVE-2026-25724 · Published Feb 6, 2026
Claude Code failed to strictly enforce deny rules configured in settings.json when accessing files through symbolic links. If a user explicitly denied Claude Code access to a file (such as /etc/passwd) and Claude Code had access to a symbolic link pointing to that file, it was possible for Claude Code to read the restricted file through the symlink without triggering deny rule enforcement. Users on standard Claude Code auto-update received this fix automatically. Users performing manual updates are advised to update to the latest version. Thank you to https://hackerone.com/ofirh for reporting this issue.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| @anthropic-ai/claude-code npm | < v2.1.7 | v2.1.7 |
Details and references
More Anthropic advisories
All Anthropic| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Feb 6 | Command Injection via Directory Change Bypasses Write Protection | High7.7 | v2.0.57 |
| Feb 6 | Command Injection via Piped sed Command Bypasses File Write Restrictions | High7.7 | v2.0.55 |
| Feb 6 | Sandbox Escape via Persistent Configuration Injection in settings.json | High7.7 | v2.1.2 |
| Feb 3 | Command Injection in find Command Bypasses User Approval Prompt | High7.7 | v2.0.72 |
| Feb 3 | Path Restriction Bypass via ZSH Clobber Allows Arbitrary File Writes | High7.7 | v2.0.74 |
| Feb 3 | Domain Validation Bypass Allows Automatic Requests to Attacker-Controlled Domains | High7.1 | v1.0.111 |