CVE-2026-25722

Claude Code is an agentic coding tool. Prior to version 2.0.57, Claude Code failed to properly validate directory changes when combined with write operations to protected folders. By using the cd command to navigate into sensitive directories like .claude, it was possible to bypass write protection and create or modify files without user confirmation. Reliably exploiting this required the ability to add untrusted content into a Claude Code context window. This issue has been patched in version 2.0.57.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/anthropics/claude-code/security/advisories/GHSA-66q4-vfjg-2qhh	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

09 Feb 2026, 14:51

Type	Values Removed	Values Added
References	~~() https://github.com/anthropics/claude-code/security/advisories/GHSA-66q4-vfjg-2qhh -~~	() https://github.com/anthropics/claude-code/security/advisories/GHSA-66q4-vfjg-2qhh - Vendor Advisory
CPE		cpe:2.3:a:anthropic:claude_code::::::node.js::*
First Time		Anthropic Anthropic claude Code
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.1

06 Feb 2026, 18:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-06 18:15

Updated : 2026-02-09 14:51

NVD link : CVE-2026-25722

Mitre link : CVE-2026-25722

CVE.ORG link : CVE-2026-25722

JSON object : View

Products Affected

anthropic

claude_code

CWE

CWE-20

Improper Input Validation

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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