CVE-2025-66032 — Command Injection in Claude-code

CWE-77 — Command InjectionCWE-20 — Improper Input Validation3 documents3 sources
Severity
8.7HIGHNVD
EPSS
0.1%
top 79.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Anthropics Claude-codeAnthropic Claude CodeAnthropic-ai Claude-code
Timeline
PublishedDec 3

Description

Claude Code is an agentic coding tool. Prior to 1.0.93, Due to errors in parsing shell commands related to $IFS and short CLI flags, it was possible to bypass the Claude Code read-only validation and trigger arbitrary code execution. Reliably exploiting this requires the ability to add untrusted content into a Claude Code context window. This vulnerability is fixed in 1.0.93.

CVSS vector

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

Affected Packages3 packages

▶NVDanthropic/claude_code< 1.0.93
▶CVEListV5anthropics/claude-code< 1.0.93

🔴Vulnerability Details

2
GHSA
Claude Code Command Validation Bypass Allows Arbitrary Code Execution↗2025-12-03
▶
OSV
Claude Code Command Validation Bypass Allows Arbitrary Code Execution↗2025-12-03
▶