CVE-2026-85170
Published:September 03, 2026
Updated:September 22, 2026
n8n versions before 1.123.73, 2.35.4, and 2.36.2 pass message content in the Gmail (v1) and Brevo nodes to the mail composer without verifying it is a string. An authenticated user able to run a workflow can supply an expression that resolves to an object carrying a path or href property, causing the composer to read a local file accessible to the n8n process or fetch an internal URL (SSRF) and attach the result to the outgoing message.
Affected Packages
https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@2.0.0 <n8n@2.35.4Fix Suggestion:
Update to version n8n@2.35.4https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) >=n8n@0.2.0 <n8n@1.123.73Fix Suggestion:
Update to version n8n@1.123.73https://github.com/n8n-io/n8n.git (GITHUB):
Affected version(s) =n8n@2.36.0 <n8n@2.36.2Fix Suggestion:
Update to version n8n@2.36.2n8n (NPM):
Affected version(s) >=0.0.1 <1.123.73Fix Suggestion:
Update to version 1.123.73n8n (NPM):
Affected version(s) >=2.0.0 <2.35.4Fix Suggestion:
Update to version 2.35.4n8n (NPM):
Affected version(s) =2.36.0 <2.36.2Fix Suggestion:
Update to version 2.36.2Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Input Validation
EPSS
Base Score:
0.23