CVE-2026-56353
6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n8n | n8n | 0 < 1.123.22 | affected |
| n8n | n8n | 1.123.22 | unaffected |
| n8n | n8n | 2.0.0 < 2.9.3 | affected |
| n8n | n8n | 2.9.3 | unaffected |
| n8n | n8n | 2.10.0 < 2.10.1 | affected |
| n8n | n8n | 2.10.1 | unaffected |
Weaknesses
- CWE-287: Improper Authentication
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-jh8h-6c9q-7gmw
- https://www.vulncheck.com/advisories/n8n-authentication-bypass-in-chat-trigger-node
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