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

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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'}


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 : Received

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

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

Link: CVE-2025-66032

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.