Workflow Automation Vulnerability in n8n Affecting Open Source Tool
CVE-2026-86996

5.3MEDIUM

Key Information:

Vendor

N8n-io

Status
N8n
Vendor
CVE Published:
8 September 2026

What is CVE-2026-86996?

n8n is an open source workflow automation platform that had a security vulnerability related to its Agent tool functionality. In versions before 2.37.7 and 2.38.2, the workflow setting 'This workflow can be called by' was enforced by the Execute Workflow node, but not when workflows were associated with an Agent. This flaw allowed a malicious user capable of building an Agent to invoke restricted workflows, potentially gaining access to sensitive data returned by those workflows. The issue has been rectified in the mentioned versions.

Affected Version(s)

n8n < 2.37.7 < 2.37.7

n8n >= 2.38.0, < 2.38.2 < 2.38.0, 2.38.2

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-7h...
x_refsource_CONFIRM
https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7
x_refsource_MISC
https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2
x_refsource_MISC

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.