{"id":"CVE-2026-103254","title":"n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in signed resume URL generation for Send-and-Wait approvals","summary":"n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in signed resume URL generation for Send-and-Wait approvals. Attackers with workflow creation permissions can mi…","severity":"medium","cvss":6.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N","cwe":["CWE-22"],"vendor":"n8n-io","product":"n8n","affected":["n8n < 1.123.80","n8n >= 2.0.0 < 2.39.6","n8n >= 2.40.0 < 2.40.1"],"published":"2026-10-01","updated":"2026-10-01","sourceUpdated":"2026-10-01T11:17:19.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103254","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-597w-c3jh-g8fg","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/n8n-before-1.123.80-2.39.6-and-2.40.1-path-traversal-via-resume-url-generation","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-01T11:42:53.801Z","slug":"CVE-2026-103254","body":"## Overview\n\nn8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a path traversal vulnerability in signed resume URL generation for Send-and-Wait approvals. Attackers with workflow creation permissions can mint valid approval URLs for gates in projects they cannot access by exploiting unresolved traversal sequences in caller-controlled node IDs, enabling cross-project approval forgery.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":34.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}