CVE-2026-110849

High

Description

n8n before 1.123.83, 2.41.4, and 2.42.1 contains a stored cross-site scripting vulnerability in the file-preview modal, which re-publishes binary data as an unsandboxed same-origin blob URL. A member who uploads a crafted item can run script in the n8n origin of whoever previews it, typically the owner, and act with their session.

SeverityHigh

CVSS7.2

Exploit probability—

ProductN8n

PublishedOct 14, 2026

First seenOct 14, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

n8n-io n8n1.123.83, 2.41.4, 2.42.1 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-29xw-66fq-4xc3

Affected products

Product	Affected versions	Fixed in
n8n-io n8n	v < 1.123.83, 2.0.0 ≤ v < 2.41.4, 2.42.0 ≤ v < 2.42.1	1.123.83, 2.41.4, 2.42.1

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