CVE-2026-65591
Published:July 22, 2026
Updated:August 04, 2026
n8n contains a sanitizer bypass vulnerability in the legacy expression evaluator's computed-member handler. An authenticated user with workflow create or modify permissions can craft a malicious expression to bypass the sanitizer and achieve host-level code execution as the n8n process. The legacy expression engine is the default in affected versions. Fixed in n8n 1.123.64, 2.29.8, and 2.30.1.
Affected Packages
n8n (NPM):
Affected version(s) >=2.0.0-rc.0 <2.29.8Fix Suggestion:
Update to version 2.29.8n8n (NPM):
Affected version(s) >=2.0.0 <2.29.8Fix Suggestion:
Update to version 2.29.8n8n (NPM):
Affected version(s) >=0.0.1 <1.123.64Fix Suggestion:
Update to version 1.123.64n8n (NPM):
Affected version(s) =2.30.0 <2.30.1Fix Suggestion:
Update to version 2.30.1Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.9
Attack Vector
NETWORK
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
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
LOW
CVSS v3
Base Score:
9.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
EPSS
Base Score:
0.47