Vulnerability Description
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 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | < 1.123.67 |
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-cj9h-qx8g-pq2gMitigationVendor Advisory
- https://www.vulncheck.com/advisories/n8n-before-credential-exfiltration-via-sub-Third Party Advisory
FAQ
What is CVE-2026-72763?
CVE-2026-72763 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 JSO...
How severe is CVE-2026-72763?
CVE-2026-72763 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72763?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.