{"id":"CVE-2026-54306","revision":"81873f25f2b8433d80f3e040bb1729bb","records":[{"revision":"81873f25f2b8433d80f3e040bb1729bb","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-54306","aliases":[],"title":"n8n: Prototype Pollution enables confused-deputy execution via public webhooks","description":"n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, a prototype pollution vulnerability allowed a crafted public webhook payload to inject attacker-controlled fields into workflow data during internal object copying. These fields could be surfaced and consumed as normal values by downstream built-in nodes. Where a workflow combines a public webhook with action nodes that consume the resulting fields, an attacker could cause the workflow to act as a confused deputy — targeting unintended records or issuing outbound requests using the workflow owner's configured credentials. This vulnerability is fixed in 2.25.7 and 2.26.2.","state":0,"publishedAt":"2026-06-23T15:43:12.318+00:00","modifiedAt":"2026-06-26T19:29:51.344+00:00","affected":[{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.26.0, < 2.26.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"< 2.25.7\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-2vff-hj5x-8gq7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54306","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54306","identifiers":["CVE-2026-54306"]},"retained":false,"historicalAffected":[]}],"coverage":[]}