CVE-2026-54052

Katalog CVE

CVSS 9.9 · Critical EPSS 0,39%

Kerentanan Authorization Bypass Through User-Controlled Key pada n8n-mcp. Skor CVSS 3.1 9.9 (Critical) menurut NVD.

Deskripsi (NVD)

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.56.1, in HTTP mode with multi-tenancy enabled through ENABLE_MULTI_TENANT=true, n8n-mcp's local workflow version history backups were not isolated per tenant, allowing an authenticated tenant to read workflow version snapshots belonging to other tenants and delete or destroy other tenants' stored backups, including full node definitions, credential references, and authorization headers. This issue is fixed in version 2.56.1.

Rincian

Terbit di NVD

15 Juli 2026

Terakhir diubah

18 Juli 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:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key
CWE-862: Missing Authorization

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 31,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-j6r7-6fhx-77wx mitigasi · advisory vendor
• https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.56.1 release notes