CVE-2025-61914: N8n Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-58jc-rcg5-95f3
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CVSS 7.3
CWE-79
Published
Advisory Summary

CVE-2025-61914 is a HIGH (CVSS 7.3) 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 n8n's possible stored xss in "respond to webhook" node may execute outside iframe sandbox. Remediation is available by upgrading affected packages to version 1.114.0.

CVE-2025-61914 at a Glance

CVE Identifier CVE-2025-61914
GHSA Identifier GHSA-58jc-rcg5-95f3
Severity HIGH
CVSS v3.1 Base Score 7.3
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: 7.3

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:U/C:H/I:H/A:N).

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

How to Fix CVE-2025-61914

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: 1.114.0 
npm install n8n@1.114.0
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-2025-61914, 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 1.114.0), 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

### Summary A stored Cross-Site Scripting (XSS) vulnerability may occur in n8n when using the “Respond to Webhook” node. When this node responds with HTML content containing executable scripts, the payload may execute directly in the top-level window, rather than within the expected sandbox introduced in version 1.103.0. This behavior can enable a malicious actor with workflow creation permissions to execute arbitrary JavaScript in the context of the n8n editor interface. While session cookies (`n8n-auth`) are marked `HttpOnly` and cannot be directly exfiltrated, the vulnerability can facilitate Cross-Site Request Forgery (CSRF)-like actions from within the user’s authenticated session, potentially allowing: - Unauthorized reading of sensitive workflow data or execution history. - Unauthorized modification or deletion of workflows. - Insertion of malicious workflow logic or external data exfiltration steps. n8n instances that allow untrusted users to create workflows are particularly impacted. ### Patches The vulnerability has been patched in v.1.114.0. ### Workarounds - Restrict workflow creation and modification privileges to trusted users only. - Avoid using untrusted HTML responses in the “Respond to Webhook” node. - Use an external reverse proxy or HTML sanitizer to filter responses that include executable scripts.

CVE-2025-61914 Affected N8n Versions

1 component(s)
Fixed Versions:
1.114.0
Product / Package Ecosystem Affected Versions Fixed Version
n8n
npm/n8n
npm
< 1.114.0
1.114.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/n8n-io/n8n/security/advisories/GHSA-58jc-rcg5-95f3
NVD — CVE-2025-61914 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-61914
N8n Source Repository REPOSITORY
https://github.com/n8n-io/n8n

Frequently Asked Questions

What is CVE-2025-61914?
CVE-2025-61914 is a security vulnerability in N8n involving n8n's Possible Stored XSS in "Respond to Webhook" Node May Execute Outside iframe Sandbox 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 1.114.0 across affected packages: n8n.
What version fixes CVE-2025-61914?
Upgrading to 1.114.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is n8n affected?
Yes, n8n is affected in releases prior to 1.114.0. Upgrade your dependency to 1.114.0 or later.
What is the CVSS score of CVE-2025-61914?
CVE-2025-61914 has a CVSS v3.1 base score of 7.3 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2025-61914?
CVE-2025-61914 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-2025-61914?
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-58jc-rcg5-95f3",
  "modified" : "2025-12-27T01:08:11Z",
  "published" : "2025-12-26T17:30:19Z",
  "aliases" : [ "CVE-2025-61914" ],
  "summary" : "n8n's Possible Stored XSS in \"Respond to Webhook\" Node May Execute Outside iframe Sandbox",
  "details" : "### Summary\nA stored Cross-Site Scripting (XSS) vulnerability may occur in n8n when using the “Respond to Webhook” node.\nWhen this node responds with HTML content containing executable scripts, the payload may execute directly in the top-level window, rather than within the expected sandbox introduced in version 1.103.0.\n\nThis behavior can enable a malicious actor with workflow creation permissions to execute arbitrary JavaScript in the context of the n8n editor interface.\n\nWhile session cookies (`n8n-auth`) are marked `HttpOnly` and cannot be directly exfiltrated, the vulnerability can facilitate Cross-Site Request Forgery (CSRF)-like actions from within the user’s authenticated session, potentially allowing:\n\n- Unauthorized reading of sensitive workflow data or execution history.\n- Unauthorized modification or deletion of workflows.\n- Insertion of malicious workflow logic or external data exfiltration steps.\n\nn8n instances that allow untrusted users to create workflows are particularly impacted.\n\n### Patches\nThe vulnerability has been patched in v.1.114.0.\n\n### Workarounds\n- Restrict workflow creation and modification privileges to trusted users only.\n- Avoid using untrusted HTML responses in the “Respond to Webhook” node.\n- Use an external reverse proxy or HTML sanitizer to filter responses that include executable scripts.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "n8n"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.114.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/n8n-io/n8n/security/advisories/GHSA-58jc-rcg5-95f3"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-61914"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/n8n-io/n8n"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-12-26T17:30:19Z",
    "nvd_published_at" : "2025-12-26T22:15:51Z"
  }
}