Live › vulnerability › CVE-2026-118648
Go to dashboardn8n webhook response paths such as error responses and responses without headers omit the sandbox Content-Security-Policy. An authenticated workflow creator can serve HTML that runs script on the n8n origin and act with the session of anyone who opens the webhook URL.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-28 19:34 UTC. All times on this page are UTC.
Self-hosted or cloud n8n instances on the affected version ranges where members can create and activate workflows with webhook triggers. Exposure depends on whether logged-in users open webhook URLs in a browser; instances on patched versions or with only trusted, single-user access have less exposure.
No product ranges from the sources yet.
n8n --version (or check the container image tag) and compare against 1.123.85, 2.43.5 and 2.44.11.123.85 or later2.43.5 or later, and 2.44.x to 2.44.1 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
n8n before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 contains a stored cross-site scripting vulnerability because some webhook response paths, such as error responses and responses without headers, omit the sandbox Content-Security-Policy. Authenticated members who can create and activate workflows can serve HTML that runs on the n8n origin, letting scripts act with the session of users who open the webhook URL.
This page as .md · .json · in your agent: get_signal("CVE-2026-118648")
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