Description
n8n is an open source workflow automation platform. From 1.24.0 to before 1.107.0, there is a stored cross-site scripting (XSS) vulnerability in @n8n/n8n-nodes-langchain.chatTrigger. An authorized user can configure the LangChain Chat Trigger node with malicious JavaScript in the initialMessages field and enable public access so that the payload is executed in the browser of any user who visits the resulting public chat URL. This can be used for phishing or to steal cookies or other sensitive data from users accessing the public chat link. The issue is fixed in version 1.107.0. Updating to 1.107.0 or later is recommended. As a workaround, the affected chatTrigger node can be disabled. No other workarounds are known.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/n8n-io/n8n/security/advisories/GHSA-mvh4-2cm2-6hpg
Issue Tracking x_refsource_misc
https://github.com/n8n-io/n8n/pull/18148
Patch x_refsource_misc
https://github.com/n8n-io/n8n/commit/d4ef191be0b39b65efa68559a3b8d5dad2e102b2
Scores
CVSS v3
5.4
EPSS
0.0003
EPSS Percentile
7.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
n8n/n8n
1.24.0 - 1.107.0
npm/n8n
1.24.0 - 1.107.0npm
Published
Sep 15, 2025
Tracked Since
Feb 18, 2026