CVE-2026-56353 PUBLISHED

n8n - Authentication Bypass in Chat Trigger Node

Assigner: VulnCheck
Reserved: 20.06.2026 Published: 15.07.2026 Updated: 15.07.2026

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.

CVSS 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
CVSS Score: 6.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 4.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	n8n
Product	n8n
Versions	Default: unaffected affected from 0 to 1.123.22 (excl.) Version 1.123.22 is unaffected affected from 2.0.0 to 2.9.3 (excl.) Version 2.9.3 is unaffected affected from 2.10.0 to 2.10.1 (excl.) Version 2.10.1 is unaffected

CVE-2026-56353 PUBLISHED

n8n - Authentication Bypass in Chat Trigger Node

Metrics

Product Status

Credits

References

Problem Types