CVE-2025-59829

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 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. This issue is fixed in version 1.0.120.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/anthropics/claude-code/security/advisories/GHSA-66m2-gx93-v996	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*

History

08 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Claude Code es una herramienta de codificación agéntica. Las versiones anteriores a la 1.0.120 no tuvieron en cuenta los enlaces simbólicos al verificar las reglas de denegación de permisos. Si un usuario denegaba explícitamente el acceso de Claude Code a un archivo y Claude Code tenía acceso a un enlace simbólico que apuntaba a ese archivo, era posible que Claude Code accediera al archivo. Los usuarios con la actualización automática estándar de Claude Code habrán recibido esta corrección automáticamente. Se aconseja a los usuarios que realizan actualizaciones manuales actualizar a la última versión. Este problema está solucionado en la versión 1.0.120.

Information

Published : 2025-10-03 20:15

Updated : 2026-10-08 22:10

NVD link : CVE-2025-59829

Mitre link : CVE-2025-59829

CVE.ORG link : CVE-2025-59829

JSON object : View

Products Affected

anthropic

claude_code

CWE

CWE-61

UNIX Symbolic Link (Symlink) Following

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