Vulnerability Description
n8n is an open source workflow automation platform. Prior to version 1.123.2, a Cross-Site Scripting (XSS) vulnerability has been identified in the handling of webhook responses and related HTTP endpoints. Under certain conditions, the Content Security Policy (CSP) sandbox protection intended to isolate HTML responses may not be applied correctly. An authenticated user with permission to create or modify workflows could abuse this to execute malicious scripts with same-origin privileges when other users interact with the crafted workflow. This could lead to session hijacking and account takeover. This issue has been patched in version 1.123.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | < 1.123.2 |
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/commit/ced34c0f93ab4c759a56065965986094d8ef7323Patch
- https://github.com/n8n-io/n8n/commit/e8cf4d6bb3af94dc296cbb67bc3dd20e9b508ac9Patch
- https://github.com/n8n-io/n8n/security/advisories/GHSA-825q-w924-xhgxPatchVendor Advisory
FAQ
What is CVE-2026-25051?
CVE-2026-25051 is a vulnerability with a CVSS score of 5.4 (MEDIUM). n8n is an open source workflow automation platform. Prior to version 1.123.2, a Cross-Site Scripting (XSS) vulnerability has been identified in the handling of webhook responses and related HTTP endpo...
How severe is CVE-2026-25051?
CVE-2026-25051 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-25051?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.