CVE-2026-59259

Katalog CVE

CVSS 6.5 · Medium EPSS 0,44%

Kerentanan Authorization Bypass Through User-Controlled Key pada n8n. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

n8n before versions 1.123.61, 2.27.4, and 2.28.1 contains a permission bypass vulnerability in external secrets handling caused by a mismatch between the static validation check and the runtime expression engine. An authenticated user with credential create or update permissions but without the externalSecret:list scope can embed external secret references into credentials in forms the static validation does not detect; these references resolve at workflow execution time, exposing secret values the user is not authorized to access. This issue only affects instances where an external secrets provider is configured and Advanced Permissions are in use.

Rincian

Terbit di NVD

15 Juli 2026

Terakhir diubah

16 Juli 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key

EPSS (30 hari)

0,44% peluang dieksploitasi; lebih tinggi dari 36,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/n8n-io/n8n/security/advisories/GHSA-jp7m-xcgx-57qm advisory vendor
• https://www.vulncheck.com/advisories/n8n-permission-bypass-via-expression-parser-mismatch-in-external-secrets advisory pihak ketiga