{"action":"Upgrade n8n to 1.123.32 or later.","affected":[{"fixed":"1.123.32","introduced":"0"},{"fixed":"2.18.1","introduced":"2.18.0"},{"fixed":"2.17.4","introduced":"2.17.0"}],"component":"n8n","cve_ids":["CVE-2026-42231"],"ecosystem":"npm","epss":0.00851,"exploited":false,"fixed_versions":["1.123.32","2.18.1","2.17.4"],"ghsa_id":"GHSA-q5f4-99jv-pgg5","id":"tcs_01M5KG58E8WVVWB8HKBXVQAZGF","modified_at":"2026-05-08T01:51:03.312026Z","published_at":"2026-04-29T21:25:02Z","references":["https://osv.dev/vulnerability/GHSA-q5f4-99jv-pgg5","https://github.com/n8n-io/n8n/security/advisories/GHSA-q5f4-99jv-pgg5","https://nvd.nist.gov/vuln/detail/CVE-2026-42231","https://github.com/n8n-io/n8n"],"severity":{"label":"critical","score":10},"sources":[{"source":"osv","source_id":"GHSA-q5f4-99jv-pgg5","url":"https://osv.dev/vulnerability/GHSA-q5f4-99jv-pgg5"}],"summary":"n8n has Prototype Pollution in XML Webhook Body Parser that Leads to RCE"}