CVE-2025-59829— Claude Code: Permission deny bypass is possible through symlink
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开源的一个代理编码工具。 Claude Code 1.0.120之前版本存在安全漏洞，该漏洞源于检查权限拒绝规则时未考虑符号链接，可能导致绕过文件访问限制。
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I. Basic Information for CVE-2025-59829
Vulnerability Information
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Vulnerability Title
Claude Code: Permission deny bypass is possible through symlink
Source: CVE Program / CVE List V5
Vulnerability Description
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.
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:N/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 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Claude Code是Anthropic开源的一个代理编码工具。 Claude Code 1.0.120之前版本存在安全漏洞，该漏洞源于检查权限拒绝规则时未考虑符号链接，可能导致绕过文件访问限制。
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 | < 1.0.120 | - |
|
II. Public POCs for CVE-2025-59829
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2025-59829 (1)
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V. Comments for CVE-2025-59829
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