CVE-2025-65099

Claude Code is an agentic coding tool. Prior to version 1.0.39, when running on a machine with Yarn 3.0 or above, Claude Code could have been tricked to execute code contained in a project via yarn plugins before the user accepted the startup trust dialog. Exploiting this would have required a user to start Claude Code in an untrusted directory and to be using Yarn 3.0 or above. This issue has been patched in version 1.0.39.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/anthropics/claude-code/security/advisories/GHSA-5hhx-v7f6-x7gv	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:*

History

18 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Claude Code es una herramienta de codificación agéntica. Versiones anteriores a la versión 1.0.39, cuando se ejecutaba en una máquina con Yarn 3.0 o superior, Claude Code podría haber sido engañado para ejecutar código contenido en un proyecto a través de plugins de yarn antes de que el usuario aceptara el diálogo de confianza de inicio. La explotación de esto habría requerido que un usuario iniciara Claude Code en un directorio no confiable y estuviera usando Yarn 3.0 o superior. Este problema ha sido parcheado en la versión 1.0.39.

Information

Published : 2025-11-19 18:15

Updated : 2026-10-18 20:10

NVD link : CVE-2025-65099

Mitre link : CVE-2025-65099

CVE.ORG link : CVE-2025-65099

JSON object : View

Products Affected

anthropic

claude_code

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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