CVE-2026-103249 (GCVE-0-2026-103249)

Vulnerability from cvelistv5 – Published: 2026-10-01 10:41 – Updated: 2026-10-01 15:03
VLAI
Title
n8n before 1.123.80, 2.39.6, and 2.40.1 Stored DOM XSS via Resource Locator
Summary
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a stored DOM cross-site scripting vulnerability in Resource Locator parameter dropdown link handling. Workflow authors can inject malicious script URLs that execute arbitrary JavaScript in the editor origin when other users open the node dropdown and click the external-link icon, with the payload persisting across workflow imports and shares.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N
7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:03 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
n8n-io n8n Affected: 0 , < 1.123.80 (semver)
Affected: 2.0.0 , < 2.39.6 (semver)
Affected: 2.40.0 , < 2.40.1 (semver)
    cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
    cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
    cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-16 00:00
Credits
tr4ce-ju
Show details on NVD website
To clipboard 

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