CVE-2025-58177: N8n Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-mvh4-2cm2-6hpg
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CVSS 4.1
CWE-79
Published
Advisory Summary

CVE-2025-58177 is a MODERATE (CVSS 4.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting N8n libraries in the npm ecosystem. The issue involves stored xss in n8n langchain chat trigger node via initialmessages parameter. Remediation is available by upgrading affected packages to version 1.107.0.

CVE-2025-58177 at a Glance

CVE Identifier CVE-2025-58177
GHSA Identifier GHSA-mvh4-2cm2-6hpg
Severity MODERATE
CVSS v3.1 Base Score 4.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product N8n
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2025-58177

To remediate this vulnerability, upgrade all affected N8n dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

n8n fixed: 1.107.0 
npm install n8n@1.107.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls n8n

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-58177, inspect your project dependencies using npm:

npm ls n8n

Analyze the terminal output to locate any version of N8n in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.107.0), your application is affected.

Note: The npm ls n8n command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In N8n, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact A stored Cross-Site Scripting (XSS) vulnerability was identified in the `@n8n/n8n-nodes-langchain.chatTrigger` node in n8n. If an authorized user configures the node with malicious JavaScript in the initialMessages field and enables public access, the script will be executed in the browser of anyone who visits the resulting public chat URL. This vulnerability could be exploited for phishing or to steal cookies or other sensitive data from users who access the public chat link, posing a security risk. ### Patches This issue has been patched in version 1.107.0 of n8n. Users should upgrade to version 1.107.0 or later. ### Workarounds Disabling the `n8n-nodes-langchain.chatTrigger` node ([docs](https://docs.n8n.io/hosting/securing/blocking-nodes/)) ### References #18148

CVE-2025-58177 Affected N8n Versions

1 component(s)
Fixed Versions:
1.107.0
Product / Package Ecosystem Affected Versions Fixed Version
n8n
npm/n8n
npm
≥ 1.24.0
< 1.107.0
1.107.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/n8n-io/n8n/security/advisories/GHSA-mvh4-2cm2-6hpg
NVD — CVE-2025-58177 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-58177
N8n Source Repository REPOSITORY
https://github.com/n8n-io/n8n/pull/18148
Security Fix Commit FIX COMMIT
https://github.com/n8n-io/n8n/commit/d4ef191be0b39b65efa68559a3b8d5dad2e102b2
N8n Security Information SECURITY
https://docs.n8n.io/hosting/securing/blocking-nodes
N8n Source Repository REPOSITORY
https://github.com/n8n-io/n8n

Frequently Asked Questions

What is CVE-2025-58177?
CVE-2025-58177 is a security vulnerability in N8n involving Stored XSS in n8n LangChain Chat Trigger Node via initialMessages Parameter under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which N8n versions are affected?
Affected versions include releases prior to 1.107.0 across affected packages: n8n.
What version fixes CVE-2025-58177?
Upgrading to 1.107.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is n8n affected?
Yes, n8n is affected in releases prior to 1.107.0. Upgrade your dependency to 1.107.0 or later.
What is the CVSS score of CVE-2025-58177?
CVE-2025-58177 has a CVSS v3.1 base score of 4.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N.
What CWE is associated with CVE-2025-58177?
CVE-2025-58177 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2025-58177?
Run the dependency tree command: 'npm ls n8n'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mvh4-2cm2-6hpg",
  "modified" : "2025-09-15T20:07:54Z",
  "published" : "2025-09-15T17:14:27Z",
  "aliases" : [ "CVE-2025-58177" ],
  "summary" : "Stored XSS in n8n LangChain Chat Trigger Node via initialMessages Parameter",
  "details" : "### Impact\nA stored Cross-Site Scripting (XSS) vulnerability was identified in the `@n8n/n8n-nodes-langchain.chatTrigger` node in n8n. If an authorized user configures the node with malicious JavaScript in the initialMessages field and enables public access, the script will be executed in the browser of anyone who visits the resulting public chat URL.\n\nThis vulnerability could be exploited for phishing or to steal cookies or other sensitive data from users who access the public chat link, posing a security risk.\n\n### Patches\nThis issue has been patched in version 1.107.0 of n8n. Users should upgrade to version 1.107.0 or later.\n\n### Workarounds\nDisabling the `n8n-nodes-langchain.chatTrigger` node ([docs](https://docs.n8n.io/hosting/securing/blocking-nodes/))\n\n### References\n#18148",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "n8n"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.24.0"
      }, {
        "fixed" : "1.107.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/n8n-io/n8n/security/advisories/GHSA-mvh4-2cm2-6hpg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-58177"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/n8n-io/n8n/pull/18148"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/n8n-io/n8n/commit/d4ef191be0b39b65efa68559a3b8d5dad2e102b2"
  }, {
    "type" : "WEB",
    "url" : "https://docs.n8n.io/hosting/securing/blocking-nodes"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/n8n-io/n8n"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-15T17:14:27Z",
    "nvd_published_at" : "2025-09-15T17:15:35Z"
  }
}