---
id: CVE-2026-110849
title: >-
  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
summary: >-
  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
  sc…
severity: high
cvss: 7.2
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-79
vendor: n8n-io
product: n8n
affected:
  - n8n < 1.123.83
  - n8n >= 2.0.0 < 2.41.4
  - n8n >= 2.42.0 < 2.42.1
published: '2026-10-14'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T16:17:47.547'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110849'
references:
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-29xw-66fq-4xc3'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/n8n-before-1.123.83-2.41.4-and-2.42.1-stored-xss-via-binary-data-file-preview
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T15:41:25.151165Z'
cvssSource: cna
ingestedAt: '2026-10-15T00:02:07.177Z'
epss: 0.00243
epssPercentile: 0.15423
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.