{"cve":"CVE-2026-54306","nvd":{"published":"2026-06-23T17:17:06.877","modified":"2026-10-25T23:10:00.167","status":"Analyzed","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.","cvss_v4":{"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},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","score":6.4},"cwes":["CWE-1321"],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-2vff-hj5x-8gq7"],"products":["n8n:n8n"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-54306","score":0.0028,"percentile":0.20245,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-2vff-hj5x-8gq7","url":"https://osv.dev/vulnerability/GHSA-2vff-hj5x-8gq7","summary":"n8n: Prototype Pollution enables confused-deputy execution via public webhooks","modified":"2026-07-20T14:00:27.066550155Z","packages":[{"ecosystem":"npm","name":"n8n","purl":"pkg:npm/n8n","ranges":[">=2.26.0 <2.26.2"],"fixed":["2.26.2"]},{"ecosystem":"npm","name":"n8n","purl":"pkg:npm/n8n","ranges":["<2.25.7"],"fixed":["2.25.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}