Vulnerability Details CVE-2026-72763
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 11.8%
CVSS Severity
CVSS v3 Score 6.5