CVE-2026-25723 — Improper Input Validation in Claude-code

CWE-20 — Improper Input ValidationCWE-78 — OS Command Injection12 documents4 sources
Severity
7.7HIGHNVD
EPSS
0.1%
top 65.27%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Anthropics Claude-codeAnthropic Claude CodeAnthropic-ai Claude-code
Timeline
PublishedFeb 6

Description

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 2.0.5…

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected Packages3 packages

▶NVDanthropic/claude_code< 2.0.55
▶CVEListV5anthropics/claude-code< 2.0.55

🔴Vulnerability Details

2
GHSA
Claude Code Vulnerable to Command Injection via Piped sed Command Bypasses File Write Restrictions↗2026-02-06
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OSV
Claude Code Vulnerable to Command Injection via Piped sed Command Bypasses File Write Restrictions↗2026-02-06
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🕵️Threat Intelligence

9
Wiz
CVE-2026-25723 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-24053 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-33068 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-25722 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-24052 Impact, Exploitability, and Mitigation Steps | Wiz↗
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