CVE-2026-103251
Published:October 01, 2026
Updated:October 11, 2026
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a validation bypass vulnerability in the community package installation handler for queue mode deployments. Attackers with Redis write access can bypass name validation, permission checks, checksum verification, and npm safety checks to install arbitrary npm packages across all cluster instances without authentication.
Affected Packages
https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@1.54.0 <n8n@1.123.80Fix Suggestion:
Update to version n8n@1.123.80https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) =n8n@2.40.0 <n8n@2.40.1Fix Suggestion:
Update to version n8n@2.40.1https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.0.0 <n8n@2.39.6Fix Suggestion:
Update to version n8n@2.39.6n8n (NPM):
Affected version(s) =2.40.0 <2.40.1Fix Suggestion:
Update to version 2.40.1n8n (NPM):
Affected version(s) >=1.54.0 <1.123.80Fix Suggestion:
Update to version 1.123.80n8n (NPM):
Affected version(s) >=2.0.0 <2.39.6Fix Suggestion:
Update to version 2.39.6Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.5
Attack Vector
ADJACENT
Attack Complexity
LOW
Attack Requirements
PRESENT
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:
7.1
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Missing Authorization
EPSS
Base Score:
0.20