CVE-2026-118677

Medium

Description

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a missing confirmation vulnerability in the Local Gateway desktop app that allows its deep-link connect handler to silently re-pair the app with a different n8n instance. Attackers can lure users running the Local Gateway into opening a crafted n8n-computer-use:// link to connect their computer to an attacker-controlled instance, inheriting previously granted permissions and acting on the computer through the gateway.

SeverityMedium

CVSS5.9

Exploit probability—

ProductN8n

PublishedOct 28, 2026

First seenNov 4, 2026

Weakness typeCWE-939CWE-939

How to fix

Update

n8n-io n8n2.42.1, 2.41.4 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-cwm2-vhf5-27q9

Affected products

Product	Affected versions	Fixed in
n8n-io n8n	2.42.0 ≤ v < 2.42.1, v < 2.41.4	2.42.1, 2.41.4

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