CVE-2026-54309

Katalog CVE

CVSS 10.0 · Critical EPSS 0,55%

Kerentanan Missing Authentication for Critical Function pada n8n. Skor CVSS 3.1 10.0 (Critical) menurut NVD.

Deskripsi (NVD)

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the user, can establish an MCP session and invoke browser-control tools. Where the n8n AI Browser Bridge extension is installed and a browser connection is active, an unauthenticated caller can access browser-control capabilities including navigation, JavaScript evaluation, and cookie and storage access against the user's real browser profile. This issue only affects instances where @n8n/mcp-browser is run with the HTTP transport (--transport http). This vulnerability is fixed in 2.25.7 and 2.26.2.

Rincian

Terbit di NVD

23 Juni 2026

Terakhir diubah

25 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-306: Missing Authentication for Critical Function

EPSS (30 hari)

0,55% peluang dieksploitasi; lebih tinggi dari 44,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/n8n-io/n8n/security/advisories/GHSA-qrx8-25qr-5r7v mitigasi · advisory vendor