WS-2026-0158
Published:October 14, 2026
Updated:October 22, 2026
n8n before 1.123.85, 2.x before 2.43.5 and 2.44.0: some webhook response paths, such as error responses, are sent without the sandbox Content-Security-Policy, so workflow-served HTML runs as stored XSS on the n8n origin (GHSA-mp7q-23hg-35cf)
Affected Packages
https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.0.0-rc.0 <n8n@2.43.5Fix Suggestion:
Update to version n8n@2.43.5https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@1.0.0 <n8n@1.123.85Fix Suggestion:
Update to version n8n@1.123.85https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) =n8n@2.44.0 <n8n@2.44.1Fix Suggestion:
Update to version n8n@2.44.1n8n (NPM):
Affected version(s) >=2.0.0-rc.0 <2.43.5Fix Suggestion:
Update to version 2.43.5n8n (NPM):
Affected version(s) >=1.0.0 <1.123.85Fix Suggestion:
Update to version 1.123.85n8n (NPM):
Affected version(s) =2.44.0 <2.44.1Fix Suggestion:
Update to version 2.44.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
ACTIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')