Vulnerability Details CVE-2026-56353
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 15.5%
CVSS Severity
CVSS v3 Score 4.8