Vulnerabilities / CVE-2026-118677

CVE-2026-118677

Published 2026-10-28 · published (not yet in NVD)

CVE-2026-118677

n8n before 2.41.4 and 2.42.1 Local Gateway Deep-Link Silent Re-pairing to Attacker Instance

5.9 MEDIUM
CVSS 4.0 · CNA

0.2%
chance of exploitation in the next 30 days (EPSS; higher than 5% of CVEs)

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.

Scores

5.9CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:L/SI:L/SA:NCNA

5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:NCNA

Affected products

n8n-io n8n: 2.42.0 to < 2.42.1
n8n-io n8n: < 2.41.4

Weakness: CWE-939

Also known as: GHSA-cwm2-vhf5-27q9

2 references (advisories, patches, write-ups)

https://github.com/n8n-io/n8n/security/advisories/GHSA-cwm2-vhf5-27q9 · vendor-advisory
https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-local-gateway-deep-link-silent-re-pairing-to-attacker-instance · third-party-advisory

Sources: CVE.org, OSV.dev, FIRST EPSS. Missing ones did not answer or have no record yet.

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