CVE-2026-126391
Published:November 13, 2026
Updated:November 13, 2026
n8n before 1.123.89 contains an insufficient isolation vulnerability in workflow expression evaluation that allows authenticated users to escape the sandbox. Attackers with permission to create or modify workflows can craft expressions referencing unexpected JavaScript properties to execute arbitrary code on the n8n host.
Affected Packages
https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.11.0 <n8n@2.45.5Fix Suggestion:
Update to version n8n@2.45.5https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) =n8n@2.46.0 <n8n@2.46.1Fix Suggestion:
Update to version n8n@2.46.1https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@1.123.51 <n8n@1.123.89Fix Suggestion:
Update to version n8n@1.123.89n8n (NPM):
Affected version(s) =2.46.0 <2.46.1Fix Suggestion:
Update to version 2.46.1n8n (NPM):
Affected version(s) >=2.11.0 <2.45.5Fix Suggestion:
Update to version 2.45.5n8n (NPM):
Affected version(s) >=1.123.51 <1.123.89Fix Suggestion:
Update to version 1.123.89Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Control of Generation of Code
EPSS
Base Score:
0.53