CVE-2026-4502: Langflow Desktop

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.

Affected products

• Langflow Langflow Desktop: from 1.2.0, up to and including 1.8.4

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