{"id":"CVE-2026-118677","aliases":[],"cve":{"records":[{"id":"CVE-2026-118677","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-28T17:28:46.441Z","published":"2026-10-28T18:59:49.747Z","modified":"2026-10-28T18:59:49.747Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-28T18:59:49.747Z"}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-cwm2-vhf5-27q9","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-local-gateway-deep-link-silent-re-pairing-to-attacker-instance","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-939","description":"Improper Authorization in Handler for Custom URL Scheme","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionStartIncluding":"2.42.0","versionEndExcluding":"2.42.1"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionEndExcluding":"2.41.4"}]}]}]}],"prioritization":[]},"title":"n8n before 2.41.4 and 2.42.1 Local Gateway Deep-Link Silent Re-pairing to Attacker Instance","titleSource":"VulnCheck","descriptionSource":"VulnCheck","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gateway.","score":5.9,"severity":"medium","published":"2026-10-28T18:59:49.747Z","modified":"2026-10-28T18:59:49.747Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"2.42.0","status":"affected","lessThan":"2.42.1","versionType":"semver"},{"version":"2.42.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-118677"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"2.41.4","versionType":"semver"},{"version":"2.41.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-118677"}],"remediation":[],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-cwm2-vhf5-27q9","https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-local-gateway-deep-link-silent-re-pairing-to-attacker-instance"],"sources":[{"name":"CVE","id":"CVE-2026-118677","modified":"2026-10-28T18:59:49.747Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-118677"}],"assessments":[{"source":"VulnCheck","vector":"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","score":5.9},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","score":5.9}],"sourceAffected":[],"observedAt":"2026-10-29T14:37:36.893Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T14:20:31.980Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"n8n versions before 2.41.4 and 2.42.x before 2.42.1 have a missing confirmation vulnerability in the Local Gateway desktop app, allowing attackers to silently re-pair the app with a different n8n instance. Attackers can lure users into opening a crafted link to connect their computer to an attacker-controlled instance. This may inherit previously granted permissions.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:54:49.492Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-118677"}]}}