CVE-2026-56353 Details
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.
A vulnerability allowing authentication bypass has been identified in n8n's Chat Trigger node, specifically when it is configured to use n8n User Auth, which is not the default setting. This issue is present in n8n versions prior to 1.123.22, as well as in versions 2.0.0 through 2.9.2 and 2.10.0. The vulnerability arises because the authentication check on the Chat Trigger webhook endpoint can be bypassed, granting access without valid credentials.
Users can upgrade to n8n versions 1.123.22, 2.9.3, or 2.10.1 to address this vulnerability. If an immediate upgrade is not possible, it is recommended to limit workflow creation and editing permissions to trusted users, use a different authentication method for the Chat Trigger node, or restrict network access to the webhook endpoint from trusted origins.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 16, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-jh8h-6c9q-7gmw | [email protected] | Vendor Advisory |
| https://www.vulncheck.com/advisories/n8n-authentication-bypass-in-chat-trigger-node | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| n8n n8n | < 1.123.22 >= 2.0.0, < 2.9.3 2.10.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 16, 2026 | Reanalysis | [email protected] |
| Jul 16, 2026 | Initial Analysis | [email protected] |
| Jul 16, 2026 | CVE Modified | CISA-ADP |
| Jul 15, 2026 | New CVE Received | [email protected] |