CVE-2026-77073

Katalog CVE

CVSS 4.3 · Medium EPSS 0,35%

Kerentanan Authorization Bypass Through User-Controlled Key pada n8n. Skor CVSS 3.1 4.3 (Medium) menurut NVD.

Deskripsi (NVD)

n8n versions before 2.34.1 contain a credential validation bypass in the MCP create_workflow_from_code tool when authentication type is set to an expression. Attackers with a valid MCP Bearer API key and knowledge of a target credential ID can persist unauthorized cross-project credential references on workflows in different projects.

Rincian

Terbit di NVD

20 Agustus 2026

Terakhir diubah

1 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key

EPSS (30 hari)

0,35% peluang dieksploitasi; lebih tinggi dari 26,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/n8n-io/n8n/security/advisories/GHSA-vfrj-582q-mvcp mitigasi · advisory vendor
• https://www.vulncheck.com/advisories/n8n-before-cross-project-credential-access-via-mcp advisory pihak ketiga