CVE-2026-56353CWE-287

n8n - Authentication Bypass in Chat Trigger Node

Medium · published July 15, 2026

CVSS v4.0
6.3
EPSS
0%
Percentile
24.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.3 · MEDIUM
Vector
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
EPSS
0.00330 · 24.9th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-07-15T11:25Z
EPSS history
Timeline
  • 15 JUL 11:25Z
    n8n - Authentication Bypass in Chat Trigger Node
    cvelistv5