CVE-2026-25722
CRITICALAnthropic Claude Code < 2.0.57 - OS Command Injection
Title source: ruleDescription
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
0.0016
EPSS Percentile
37.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Classification
CWE
CWE-78
CWE-20
Status
published
Affected Products (2)
anthropic/claude_code
< 2.0.57
anthropic-ai/claude-code
< 2.0.57npm
Timeline
Published
Feb 06, 2026
Tracked Since
Feb 18, 2026