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High severity · published May 4, 2026
CVE-2026-42232
n8n: XML Node Prototype Pollution to RCE
8.8
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
< 1.123.32; >= 2.17.0, < 2.17.4; >= 2.18.0, < 2.18.1 · source: vendor, NVD
Affected product
N8
n8n
n8n-io
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42232
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42232
Vendor Advisory
https://github.com/n8n-io/n8n/security/advisories/GHSA-hqr4-h3xv-9m3r
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