---
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: none
cwe:
  - CWE-79
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T23:17:25.823'
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
ingestedAt: '2026-10-15T00:02:07.177Z'
---

## 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.