csirt@kutim:~/threat-intel/cve/CVE-2026-27494

Katalog CVE

CVSS 9.9 · Critical EPSS 0,64%

Kerentanan Exposure of Sensitive System Information to an Unauthorized Control Sphere pada n8n. Skor CVSS 3.1 9.9 (Critical) menurut NVD.

Deskripsi (NVD)

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could use the Python Code node to escape the sandbox. The sandbox did not sufficiently restrict access to certain built-in Python objects, allowing an attacker to exfiltrate file contents or achieve RCE. On instances using internal Task Runners (default runner mode), this could result in full compromise of the n8n host. On instances using external Task Runners, the attacker might gain access to or impact other task executed on the Task Runner. Task Runners must be enabled using `N8N_RUNNERS_ENABLED=true`. The issue has been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to this version or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations. Limit workflow creation and editing permissions to fully trusted users only., and/or disable the Code node by adding `n8n-nodes-base.code` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Rincian

Terbit di NVD
25 Februari 2026
Terakhir diubah
17 Juni 2026
Status NVD
Analyzed
CVSS 3.1
9.9 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere
EPSS (30 hari)
0,64% peluang dieksploitasi; lebih tinggi dari 49,2% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
n8n n8n Semua versi sebelum 1.123.22
n8n n8n Versi 2.0.0 hingga sebelum 2.9.3
n8n n8n Versi 2.10.0 hingga sebelum 2.10.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

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.