CVE-2026-3346: Langflow Desktop

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Affected products

• Langflow Langflow Desktop: from 1.6.0, up to and including 1.8.4

Published 2026-04-30. Last modified 2026-06-17.