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CVE-2026-25724— Claude Code Has Permission Deny Bypass Through Symbolic Links

Quick assessment

Affected
anthropics claude-code
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Claude Code是Anthropic开源的一个终端原生AI编程工具。 Claude Code 2.1.7之前版本存在授权问题漏洞，该漏洞源于通过符号链接访问文件时未能严格执行settings.json中配置的拒绝规则，可能导致读取受限制的文件。

AI Predicted 3.1 Difficulty: Easy EPSS 0.60% · P47

Possible ATT&CK Techniques 2 AI

T1552 · Unsecured Credentials T1155
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I. Basic Information for CVE-2026-25724

Vulnerability Information
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Vulnerability Title
Claude Code Has Permission Deny Bypass Through Symbolic Links
Source: CVE Program / CVE List V5
Vulnerability Description
Claude Code is an agentic coding tool. Prior to version 2.1.7, 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. This issue has been patched in version 2.1.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
Claude Code 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Claude Code是Anthropic开源的一个终端原生AI编程工具。 Claude Code 2.1.7之前版本存在授权问题漏洞，该漏洞源于通过符号链接访问文件时未能严格执行settings.json中配置的拒绝规则，可能导致读取受限制的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
anthropics claude-code < 2.1.7 -

II. Public POCs for CVE-2026-25724

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III. Intelligence Information for CVE-2026-25724

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Vendor Advisories for CVE-2026-25724 (1)

Same Patch Batch · anthropics · 2026-02-06 · 4 CVEs total

CVE-2026-25722 Claude Code Vulnerable to Command Injection via Directory Change Bypasses Write Protection
CVE-2026-25723 Claude Code Vulnerable to Command Injection via Piped sed Command Bypasses File Write Rest
CVE-2026-25725 Claude Code Has Sandbox Escape via Persistent Configuration Injection in settings.json

IV. Related Vulnerabilities

Same product: claude-code
Same vendor: anthropics
Same weakness: CWE-61

V. Comments for CVE-2026-25724

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