CVE-2026-55607: anthropic claude code

csirt@kutim:~/threat-intel/cve/CVE-2026-55607

CVSS 8.8 · High EPSS 0,69%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada anthropic claude code. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD: 29 Juni 2026
Terakhir diubah: 30 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
EPSS (30 hari): 0,69% peluang dieksploitasi; lebih tinggi dari 51,4% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
anthropic	claude code	Versi 2.1.38 hingga sebelum 2.1.163

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/anthropics/claude-code/security/advisories/GHSA-7835-87q9-rgvv advisory vendor

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.