n8n stored cross-site scripting in LangChain Chat Trigger node initialMessages parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-58177
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-15 17:15:35 UTC
Updated2026-10-19 17:10:00 UTC
Descriptionn8n 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.002430000 probability, percentile 0.145230000 (date 2026-10-19)

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application N8n N8n All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA N8n-io N8n affected >= 1.24.0, < 1.107.0 Not specified

References

ReferenceSourceLinkTags
github.com/n8n-io/n8n/commit/d4ef191be0b39b65efa68559a3b8d5dad2e102b2 [email protected] github.com Patch
github.com/n8n-io/n8n/security/advisories/GHSA-mvh4-2cm2-6hpg [email protected] github.com Vendor Advisory
github.com/n8n-io/n8n/pull/18148 [email protected] github.com Issue Tracking
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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