Critical severity · published Jun 23, 2026
CVE-2026-44791
n8n: XML Node Prototype Pollution Patch Bypass
9.9
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
< 1.123.43; >= 2.0.0-rc.0, < 2.20.7; >= 2.21.0, < 2.21.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44791
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44791
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-wrwr-h859-xh2r
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