{"id":"CVE-2026-72763","title":"n8n before 1.123.67 Credential Exfiltration via Sub-Workflow","summary":"n8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a s…","severity":"high","cvss":7.2,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L","cvssSource":"cna","cwe":["CWE-639"],"vendor":"n8n-io","product":"n8n","affected":["n8n < 1.123.67","n8n >= 2.32.0 < 2.32.1","n8n >= 2.0.0-rc.0 < 2.31.5"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-11T18:00:55.830903Z"},"published":"2026-08-11","updated":"2026-10-29","sourceUpdated":"2026-10-29T21:16:36.894Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72763","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-cj9h-qx8g-pq2g","label":"GitHub Security Advisory (GHSA-cj9h-qx8g-pq2g)"},{"url":"https://www.vulncheck.com/advisories/n8n-before-credential-exfiltration-via-sub-workflow","label":"VulnCheck Advisory: n8n before 1.123.67 Credential Exfiltration via Sub-Workflow"}],"tags":["cve.org"],"epss":0.00358,"epssPercentile":0.2953,"ingestedAt":"2026-11-03T08:39:35.589Z","slug":"CVE-2026-72763","body":"## Overview\n\nn8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a shared workflow (when workflow sharing is enabled) who knows a target credential's ID can reference that credential in the inline JSON; it passes save-time and runtime validation and resolves in the parent workflow's project context, allowing the attacker to use or exfiltrate credentials they are not permitted to access.\n\n## Affected\n\n- `n8n < 1.123.67`\n- `n8n >= 2.32.0 < 2.32.1`\n- `n8n >= 2.0.0-rc.0 < 2.31.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}