CVE-2026-103249

HIGHCVSS 7.6

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.

Published 2026-10-01 · last modified 2026-10-01

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.