VULNERABILITY INTELLIGENCE

CVE-2025-66032

CVSS score9.8 CRITICAL
EPSS probability0.69%
CISA KEVNot currently listed
Published2025-12-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • security-advisories@github.com: CWE-77

Primary references