SCA: security update for n8n (GHSA-f6x8-65q6-j9m9)

medium Tenable Self-Hosted Container Security Plugin ID 441001

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the
/mcp-oauth/register endpoint accepted OAuth client registrations without authentication, allowing
arbitrary redirect_uri values to be registered. When a user denies the MCP OAuth consent dialog, the
handleDeny handler redirects the user to the registered redirect_uri without validation, enabling an open
redirect to an attacker-controlled URL. An attacker can craft a phishing link and send it to a victim; if
the victim clicks "Deny" on the consent page, they are silently redirected to an external site. This issue
has been patched in versions 1.123.32, 2.17.4, and 2.18.1. (CVE-2026-42230)

Solution

Update the n8n library and its related packages to version 1.123.32 or later.

See Also

https://github.com/advisories/GHSA-f6x8-65q6-j9m9

Plugin Details

Severity: Medium

ID: 441001

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 4/30/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.42

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-42230

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 1.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/29/2026

Vulnerability Publication Date: 4/29/2026

Reference Information

CVE: CVE-2026-42230

cwe: CWE-601