n8n before 1.123.89 contains an authentication bypass vulnerability in the Chat Trigger that allows unauthenticated attackers to skip n8n User Auth through the setup GET webhook route in embedded chat mode. Attackers can send unauthenticated GET requests to the chat webhook URL to read named session conversation history or trigger workflows with attacker-supplied input.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 13 Nov 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | n8n before 1.123.89 contains an authentication bypass vulnerability in the Chat Trigger that allows unauthenticated attackers to skip n8n User Auth through the setup GET webhook route in embedded chat mode. Attackers can send unauthenticated GET requests to the chat webhook URL to read named session conversation history or trigger workflows with attacker-supplied input. | |
| Title | n8n before 1.123.89 Authentication Bypass via Chat Trigger Embedded Chat | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-288 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-13T09:35:55.673Z
Reserved: 2026-11-10T21:30:16.910Z
Link: CVE-2026-126389
No data.
Status : Deferred
Published: 2026-11-13T10:17:42.467
Modified: 2026-11-13T10:17:42.600
Link: CVE-2026-126389
No data.
OpenCVE Enrichment
No data.
Weaknesses