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,...

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,...

CVE-2026-56353

The CVE-2026-56353 issue affects n8n’s Chat Trigger node configured with n8n User Auth. Affected releases permit bypassing the authentication check on the Chat Trigger webhook endpoint, enabling access without valid credentials. Vulnerable versions include prior to 1.123.22, the 2.0.0–2.9.2 line,...

EUVD-2026-44626

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,...

CVE-2026-56353 n8n - Authentication Bypass in Chat Trigger Node

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,...

CVE-2026-56353 n8n - Authentication Bypass in Chat Trigger Node

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,...

EUVD-2026-40444

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 fixed in 1.123.27, 2.13.3, and 2.14.1. An authenticat...

CVE-2026-56356

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 fixed in 1.123.27, 2.13.3, and 2.14.1. An authenticat...

CVE-2026-56356 n8n - Stored Cross-Site Scripting in Chat Trigger Node Custom CSS Field

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 fixed in 1.123.27, 2.13.3, and 2.14.1. An authenticat...

CVE-2026-56356 n8n - Stored Cross-Site Scripting in Chat Trigger Node Custom CSS Field

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 fixed in 1.123.27, 2.13.3, and 2.14.1. An authenticat...

CVE-2026-56356

Summary: CVE-2026-56356 affects n8n’s Chat Trigger node Custom CSS field, where a misconfiguration of the sanitize-html library allows stored XSS. Affected versions: before 1.123.27; 2.0.0–2.13.2; 2.14.0. Impact: an authenticated user with workflow creation/modification rights can inject JavaScri...

CVE-2026-56356

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 fixed in 1.123.27, 2.13.3, and 2.14.1. An authenticat...

PT-2026-54040

Name of the Vulnerable Software and Affected Versions n8n versions prior to 1.123.27 n8n versions 2.0.0 through 2.13.2 n8n version 2.14.0 Description A stored cross-site scripting issue exists in the Chat Trigger node's Custom CSS field caused by a misconfiguration of the sanitize-html library. A...

Cross-site Scripting (XSS)

Overview @n8n/n8n-nodes-langchain is a Affected versions of this package are vulnerable to Cross-site Scripting XSS via the webhookId parameter in the Chat Trigger node. An attacker can execute arbitrary JavaScript in the context of another user's session by injecting malicious code, which is the...

CVE-2026-54302

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the...

CVE-2026-54302 n8n: Stored XSS in Chat Trigger Node

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the...

EUVD-2026-38477

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the...

CVE-2026-54302

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the...

CVE-2026-54302

CVE-2026-54302 — n8n: Stored XSS in Chat Trigger Node . An authenticated user with workflow edit access could inject JavaScript into the Chat Trigger page by setting a malicious webhookId. When a logged-in user visited the chat URL, the code executed in the n8n origin under that user’s session. A...

CVE-2026-54302 n8n: Stored XSS in Chat Trigger Node

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the...