Vulnerability Description
n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases — before 1.123.22, the 2.0.0 through 2.9.2 line, and 2.10.0 — the authentication check on the Chat Trigger webhook endpoint can be circumvented, allowing access without valid credentials. Fixed in 1.123.22, 2.9.3, and 2.10.1.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | < 1.123.22 |
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-jh8h-6c9q-7gmwVendor Advisory
- https://www.vulncheck.com/advisories/n8n-authentication-bypass-in-chat-trigger-nThird Party Advisory
FAQ
What is CVE-2026-56353?
CVE-2026-56353 is a vulnerability with a CVSS score of 4.8 (MEDIUM). n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases — before 1.123.22, the 2.0.0 through 2.9.2 line, a...
How severe is CVE-2026-56353?
CVE-2026-56353 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56353?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.