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CVE-2026-110847

HighCVSS 7 / 10
Published Oct 14, 2026·Last modified Oct 15, 2026
Affected Components(1347)
n8n-io/n8n
n8n-editor-ui@0.148.0
n8n-io/n8n
n8n-core@0.125.0
n8n-io/n8n
n8n@0.198.2
1 / 449
Description

n8n before 1.123.83, 2.x before 2.41.4, and 2.42.x before 2.42.1 contains a stored cross-site scripting vulnerability in the Chat Trigger hosted-chat page, where insufficiently sanitised customCss values are interpolated into the page as markup. Workflow authors can publish a chat without n8n user authentication whose payload executes on the instance origin, acting on the sessions of signed-in visitors.

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Risk Scores
Base Score
7.0

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges.

Threat Intelligence
4.7

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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