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.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/n8n-io/n8n/security/advisories/GHSA-hqr4-h3xv-9m3r
Scores
CVSS v3
8.8
EPSS
0.0014
EPSS Percentile
34.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-1321
Status
published
Products (8)
n8n/n8n
2.18.0
n8n/n8n
< 1.123.32
n8n-io/n8n
< 1.123.32
n8n-io/n8n
>= 2.17.0, < 2.17.4
n8n-io/n8n
>= 2.18.0, < 2.18.1
npm/n8n
0 - 1.123.32npm
npm/n8n
2.17.0 - 2.17.4npm
npm/n8n
2.18.0 - 2.18.1npm
Published
May 04, 2026
Tracked Since
May 05, 2026