CVE-2026-54302

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the injected code executed in the n8n origin with that user's session privileges. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-42h7-m79w-wvg5	Mitigation Vendor 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

26 Jun 2026, 02:24

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4
First Time		N8n N8n n8n
CPE		cpe:2.3:a:n8n:n8n::::::node.js::*
References	~~() https://github.com/n8n-io/n8n/security/advisories/GHSA-42h7-m79w-wvg5 -~~	() https://github.com/n8n-io/n8n/security/advisories/GHSA-42h7-m79w-wvg5 - Mitigation, Vendor Advisory

23 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-23 17:17

Updated : 2026-06-26 02:24

NVD link : CVE-2026-54302

Mitre link : CVE-2026-54302

CVE.ORG link : CVE-2026-54302

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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