VULNERABILITY INTELLIGENCE

CVE-2026-85166

CVSS score7.2 HIGH
EPSS probability0.36%
CISA KEVNot currently listed
Published2026-09-03
Last modified2026-09-10
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L

Description

n8n before 2.35.4 and 2.36.x before 2.36.2 does not validate credential references in the inline workflow JSON of nodes that execute an inline sub-workflow (e.g., the Workflow Tool node). A shared-workflow editor, or any user creating/updating a workflow via the REST API, Public API, or MCP, can persist a node referencing a credential they do not own. When the workflow is later executed under an identity that holds the credential, the inline sub-workflow resolves the secret and can send it to an attacker-controlled endpoint, resulting in credential exfiltration.

Weakness classification

  • CWE-863: Incorrect Authorization

Primary references