CVE-2026-42232 Details
Description
n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via the XML Node leading to RCE when combined with other nodes exploiting the prototype pollution. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.
A vulnerability allowing global prototype pollution has been identified in n8n, an open-source workflow automation platform. This issue affects versions prior to 1.123.32, 2.17.4, and 2.18.1. The vulnerability arises when an authenticated user with permission to create or modify workflows exploits the XML Node, leading to remote code execution when combined with other nodes that take advantage of the prototype pollution.
Users are advised to upgrade to n8n versions 1.123.32, 2.17.4, or 2.18.1. If an immediate upgrade is not possible, consider limiting workflow creation and editing permissions to trusted users only, and disable the XML node by adding 'n8n-nodes-base.xml' to the 'NODES_EXCLUDE' environment variable.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-hqr4-h3xv-9m3r | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1321 | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| n8n n8n | < 1.123.32 >= 2.17.0, < 2.17.4 2.18.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 6, 2026 | Initial Analysis | [email protected] |
| May 4, 2026 | New CVE Received | [email protected] |