CVE-2026-85170

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-95ph-833c-4wrp	Mitigation Vendor Advisory
https://www.vulncheck.com/advisories/n8n-before-1.123.73-local-file-read-and-ssrf-via-gmail-and-brevo-nodes	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n::::::node.js::*

History

18 Sep 2026, 14:42

Type	Values Removed	Values Added
CPE		cpe:2.3:a:n8n:n8n::::::node.js::*
References	~~() https://github.com/n8n-io/n8n/security/advisories/GHSA-95ph-833c-4wrp -~~	() https://github.com/n8n-io/n8n/security/advisories/GHSA-95ph-833c-4wrp - Mitigation, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/n8n-before-1.123.73-local-file-read-and-ssrf-via-gmail-and-brevo-nodes -~~	() https://www.vulncheck.com/advisories/n8n-before-1.123.73-local-file-read-and-ssrf-via-gmail-and-brevo-nodes - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
First Time		N8n n8n N8n

Information

Published : 2026-09-03 13:06

Updated : 2026-10-29 21:17

NVD link : CVE-2026-85170

Mitre link : CVE-2026-85170

CVE.ORG link : CVE-2026-85170

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-20

Improper Input Validation

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