CVE-2025-66032

CRITICAL

Claude Code < 1.0.93 - Remote Code Execution via Shell Command Parsing Bypass

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0063
EPSS Percentile 45.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-77
Status published
Products (2)
anthropic/claude_code < 1.0.93
anthropic-ai/claude-code 0 - 1.0.93npm
Published Dec 03, 2025
Tracked Since Feb 18, 2026