{"action":"Upgrade n8n to 2.20.0 or later.","affected":[{"fixed":"2.20.0","introduced":"0"}],"component":"n8n","cve_ids":["CVE-2026-56348"],"ecosystem":"npm","epss":0.00482,"exploited":false,"fixed_versions":["2.20.0"],"ghsa_id":"GHSA-3875-8gcx-7v46","id":"tcs_01M5KEWHR5R6TXRB1S56HXZYQ1","modified_at":"2026-07-20T13:45:33.664217554Z","published_at":"2026-05-19T16:17:43Z","references":["https://osv.dev/vulnerability/GHSA-3875-8gcx-7v46","https://github.com/n8n-io/n8n/security/advisories/GHSA-3875-8gcx-7v46","https://nvd.nist.gov/vuln/detail/CVE-2026-56348","https://github.com/n8n-io/n8n","https://www.vulncheck.com/advisories/n8n-credential-exfiltration-via-allowed-http-request-domains-bypass-in-dynamic-node-parameters-endpoint"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"GHSA-3875-8gcx-7v46","url":"https://osv.dev/vulnerability/GHSA-3875-8gcx-7v46"}],"summary":"n8n: Credential exfiltration via Allowed HTTP Request Domains Bypass"}