# CVE-2026-118677: n8n before 2.41.4 and 2.42.1 Local Gateway Deep-Link Silent Re-pairing to Attacker Instance

Status: published. Published: 2026-10-28. Updated: 2026-11-03.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n8n-io / n8n (n8n): ≥ 2.42.0; < 2.42.1 (affected, semver); 2.42.1 (unaffected, semver). Source: CNA: VulnCheck
- n8n-io / n8n (n8n): ≥ 0; < 2.41.4 (affected, semver); 2.41.4 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 5.9 (medium); CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.17% as of 2026-11-02; percentile 5.67%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-939

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/n8n-io/n8n/security/advisories/GHSA-cwm2-vhf5-27q9 (CNA: VulnCheck; 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 (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-118677; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-118677; retrieved 2026-11-03; source updated Not reported

Revision: 081f2ea2104347bbceb88ad00a5f30329e5b9ffcd08a5b6118ba85dd8f35eb77

Canonical: https://y2.dev/cve/CVE-2026-118677

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