CVE-2026-103247
Published:October 01, 2026
Updated:October 11, 2026
n8n versions before 1.123.80 contain a credential tampering vulnerability where duplicate node IDs bypass the workflow credential tamper guard. Attackers with editor access to shared workflows can exploit mismatched node ID and name matching to retain victim credentials and redirect secrets to attacker-controlled hosts.
Affected Packages
https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.0.0 <n8n@2.36.0Fix Suggestion:
Update to version n8n@2.36.0https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@1.0.0 <n8n@1.123.80Fix Suggestion:
Update to version n8n@1.123.80n8n (NPM):
Affected version(s) >=2.0.0 <2.36.0Fix Suggestion:
Update to version 2.36.0n8n (NPM):
Affected version(s) >=1.0.0 <1.123.80Fix Suggestion:
Update to version 1.123.80Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
EPSS
Base Score:
0.24