CVE-2026-25722

CRITICAL

Anthropic Claude Code < 2.0.57 - OS Command Injection

Title source: rule
STIX 2.1

Description

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.

Scores

CVSS v3 9.1
EPSS 0.0014
EPSS Percentile 33.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-78 CWE-20
Status published
Products (2)
anthropic/claude_code < 2.0.57
anthropic-ai/claude-code 0 - 2.0.57npm
Published Feb 06, 2026
Tracked Since Feb 18, 2026