CVE-2025-66032

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.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - security-advisories@github.com

Published

2025-12-03

Last modified

2025-12-03

Weaknesses

CWE-77

Affected products

• Claude Code (Anthropic)
• Claude-code (Anthropics)

References

• https://github.com/anthropics/claude-code/security/advisories/GHSA-xq4m-mc3c-vvg3