{"affected":[{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"n8n","product":"n8n","source":"CNA: VulnCheck","vendor":"n8n-io","versions":[{"lessThan":"1.123.85","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.85","versionType":"semver"}]},{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"n8n","product":"n8n","source":"CNA: VulnCheck","vendor":"n8n-io","versions":[{"lessThan":"2.44.1","status":"affected","version":"2.44.0","versionType":"semver"},{"status":"unaffected","version":"2.44.1","versionType":"semver"}]},{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"n8n","product":"n8n","source":"CNA: VulnCheck","vendor":"n8n-io","versions":[{"lessThan":"2.43.5","status":"affected","version":"2.0.0","versionType":"semver"},{"status":"unaffected","version":"2.43.5","versionType":"semver"}]}],"cveId":"CVE-2026-118640","cwes":["CWE-863"],"description":"n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability in Chat Hub that allows chat-only users to register restricted tool types. Users with the global:chatUser role can add and run tools through chat to execute sandboxed code, access permitted files, and use instance workflows, Data Tables, and agents.","epss":{"date":"2026-11-02","percentile":0.08552,"score":0.00189},"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":5.4,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1793711806860,"publishedAt":1793213979419,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-43v8-hjhm-chjp"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-chat-hub-authorization-bypass"}],"remediation":[],"revision":"4a0d630fa26225a19248891f67b0b92080324282f88ff7b261a5dcd2406aa375","sources":[{"modifiedAt":1793711806860,"name":"CNA: VulnCheck","retrievedAt":1793714947444,"url":"https://www.cve.org/CVERecord?id=CVE-2026-118640"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793714965284,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-118640"}],"ssvc":{"assessedAt":1793711776225,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"n8n before 1.123.85, 2.43.5, and 2.44.1 Chat Hub Authorization Bypass","updatedAt":1793714965284}