Prototype Pollution Vulnerability in n8n Workflow Automation Platform
CVE-2026-42232

9.4CRITICAL

Key Information:

Vendor

N8n-io

Status
N8n
Vendor
CVE Published:
4 May 2026

What is CVE-2026-42232?

An authenticated user with permissions to create or modify workflows on n8n, prior to the specified versions, could exploit a prototype pollution vulnerability in the XML Node. This flaw could lead to remote code execution (RCE) when coupled with other nodes, posing significant risks to the integrity of the platform. The issue has been addressed in versions 1.123.32, 2.17.4, and 2.18.1.

Affected Version(s)

n8n < 1.123.32 < 1.123.32

n8n >= 2.17.0, < 2.17.4 < 2.17.0, 2.17.4

n8n >= 2.18.0, < 2.18.1 < 2.18.0, 2.18.1

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-hq...
x_refsource_CONFIRM

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.