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.
History

Thu, 15 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
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.
Title n8n before 1.123.83, 2.41.4, and 2.42.1 Stored XSS via Binary-Data File Preview
First Time appeared N8n
N8n n8n
Weaknesses CWE-79
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV4_0

{'score': 7.2, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-14T22:52:24.876Z

Updated: 2026-10-15T15:41:35.418Z

Reserved: 2026-10-14T22:16:22.734Z

Link: CVE-2026-110849

cve-icon Vulnrichment

Updated: 2026-10-15T15:41:29.084Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T23:17:25.713

Modified: 2026-10-15T16:17:47.547

Link: CVE-2026-110849

cve-icon Redhat

No data.