CVE-2026-25051
BaseFortify
Publication date: 2026-02-04
Last updated on: 2026-02-05
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| n8n | n8n | to 1.123.2 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | 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. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade n8n to version 1.123.2 or later, where the issue has been patched.
Additionally, restrict workflow creation and modification permissions to trusted authenticated users only, as the vulnerability requires such permissions to be exploited.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
How can this vulnerability impact me? :
The vulnerability can lead to session hijacking and account takeover because the malicious scripts executed have the same-origin privileges as the affected users.
Can you explain this vulnerability to me?
This vulnerability is a Cross-Site Scripting (XSS) issue found in the n8n workflow automation platform before version 1.123.2. It occurs because the Content Security Policy (CSP) sandbox protection, which is supposed to isolate HTML responses, may not be applied correctly under certain conditions when handling webhook responses and related HTTP endpoints.
An authenticated user who has permission to create or modify workflows can exploit this flaw by crafting a workflow that executes malicious scripts with same-origin privileges when other users interact with it.