Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-55607

Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-22 Limitación incorrecta de nombre de ruta a un directorio restringido (Path Traversal)
Fecha de publicación:
29/06/2026
Última modificación:
30/06/2026

Descripción

*** Pendiente de traducción *** Claude Code is an agentic coding tool. From 2.1.38 until 2.1.163, Claude Code's worktree handling allowed creation of worktrees named ".git" and navigation to worktrees outside the sandbox context, enabling git directory confusion attacks. By exploiting symlink manipulation and git fsmonitor execution during worktree operations, an attacker could overwrite files in the user's home directory (such as .zshenv), leading to code execution outside of seatbelt sandbox restrictions. Reliably exploiting this required the user to clone a malicious repository containing prompt injection content and run Claude Code against it. This vulnerability is fixed in 2.1.163.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:anthropic:claude_code:*:*:*:*:*:node.js:*:* 2.1.38 (incluyendo) 2.1.163 (excluyendo)