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.
Published: 2025-12-03
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-xq4m-mc3c-vvg3 Claude Code Command Validation Bypass Allows Arbitrary Code Execution
History

Sat, 06 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Fri, 05 Dec 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Anthropic
Anthropic claude Code
CPEs cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*
Vendors & Products Anthropic
Anthropic claude Code
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Thu, 04 Dec 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Anthropics
Anthropics claude Code
Vendors & Products Anthropics
Anthropics claude Code

Wed, 03 Dec 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 03 Dec 2025 18:30:00 +0000

Type Values Removed Values Added
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.
Title Claude Code Command Validation Bypass Allows Arbitrary Code Execution
Weaknesses CWE-77
References
Metrics cvssV4_0

{'score': 8.7, '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'}


Subscriptions

Anthropic Claude Code
Anthropics Claude Code
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-12-03T19:11:39.067Z

Reserved: 2025-11-21T01:08:02.614Z

Link: CVE-2025-66032

cve-icon Vulnrichment

Updated: 2025-12-03T19:11:27.184Z

cve-icon NVD

Status : Analyzed

Published: 2025-12-03T19:15:57.527

Modified: 2025-12-05T16:29:42.130

Link: CVE-2025-66032

cve-icon Redhat

Severity : Important

Publid Date: 2025-12-03T18:16:54Z

Links: CVE-2025-66032 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-12-04T16:44:09Z

Weaknesses