CVE-2026-56356: n8n — Katalog CVE

csirt@kutim:~/threat-intel/cve/CVE-2026-56356

CVSS 5.4 · Medium EPSS 0,25%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada n8n. Skor CVSS 3.1 5.4 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 (fixed in 1.123.27, 2.13.3, and 2.14.1). An authenticated user with permission to create or modify workflows can inject JavaScript that bypasses sanitization, resulting in stored XSS against any user who visits the public chat page.

Rincian

Terbit di NVD: 30 Juni 2026
Terakhir diubah: 2 Juli 2026
Status NVD: Analyzed
CVSS 3.1: 5.4 (Medium), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS (30 hari): 0,25% peluang dieksploitasi; lebih tinggi dari 15,1% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
n8n	n8n	Semua versi sebelum 1.123.27
n8n	n8n	Versi 2.0.0 hingga sebelum 2.13.3
n8n	n8n	Versi 2.14.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/n8n-io/n8n/security/advisories/GHSA-3c7f-5hgj-h279 mitigasi · advisory vendor
https://www.vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-chat-trigger-node-custom-css-field advisory pihak ketiga

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.