CVE-2026-25723

CVE-2026-25723 · Claude Code Vulnerable to Command Injection via Piped sed Command Bypasses File Write Restrictions

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Claude Code is an agentic coding tool. Prior to version 2.0.55, Claude Code failed to properly validate commands using piped sed operations with the echo command, allowing attackers to bypass file write restrictions. This vulnerability enabled writing to sensitive directories like the .claude folder and paths outside the project scope. Exploiting this required the ability to execute commands through Claude Code with the "accept edits" feature enabled. This issue has been patched in version 2.0.55.

CVSS 7.7 · High · EPSS 0.5% · Fix available

Published

2026-02-06T17:52:59.028Z

Updated

2026-02-06T18:40:54.158Z

Stack: node

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