n8n up to 1.123.21/2.9.2/2.10.0 Chat Trigger config

Summaryinfo

A vulnerability, which was classified as critical, has been found in n8n up to 1.123.21/2.9.2/2.10.0. Impacted is an unknown function of the component Chat Trigger. This manipulation causes config. The identification of this vulnerability is CVE-2026-56353. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in n8n up to 1.123.21/2.9.2/2.10.0 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Chat Trigger. The manipulation with an unknown input leads to a config vulnerability. The CWE definition for the vulnerability is CWE-16. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE 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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-56353 since 06/20/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592.004 according to MITRE ATT&CK.

Upgrading to version 1.123.22, 2.9.3 or 2.10.1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• n8n

Version

• 1.123.0
• 1.123.1
• 1.123.2
• 1.123.3
• 1.123.4
• 1.123.5
• 1.123.6
• 1.123.7
• 1.123.8
• 1.123.9
• 1.123.10
• 1.123.11
• 1.123.12
• 1.123.13
• 1.123.14
• 1.123.15
• 1.123.16
• 1.123.17
• 1.123.18
• 1.123.19
• 1.123.20
• 1.123.21
• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.9.0
• 2.9.1
• 2.9.2
• 2.10.0

CPE 2.3info

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CPE 2.2info

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