CVE-2026-103249
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…
- Risk score
- 48/100
- CVSS
- 7.6 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 1 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 o…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.123.80, 2.39.6 or 2.40.1 (whichever matches your release line), or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.6 high
References
Original description
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.
Last activity 1 Oct 2026. Patch Forecast updates every hour.