Vulnerability Intelligence Report
n8n: XML Node Prototype Pollution Patch Bypass
CVE-2026-44791
n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with permission to create or modify workflows could bypass the patch for CVE-2026-42232 in the XML node. When combined with other nodes, this could lead to RCE on the n8n host. This vulnerability is fixed in 1.123.43, 2.22.1, and 2.20.7.
No Active Exploit Signals
CVSS Base Score
9.4
CRITICAL
EPSS Probability:0.54%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-1321 ↗CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| n8n-io | n8n | < 1.123.43 (affected), >= 2.0.0-rc.0, < 2.20.7 (affected), >= 2.21.0, < 2.21.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.539%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-05-07T19:20:44 |
| Published | 2026-06-23T15:54:17 |
| Last Updated | 2026-06-23T17:13:43 |
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