CVE-2026-3357: Langflow

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

IBM Langflow Desktop 1.6.0 through 1.8.2 Langflow could allow an authenticated user to execute arbitrary code on the system, caused by an insecure default setting which permits the deserialization of untrusted data in the FAISS component.

Affected products

• Langflow Langflow: from 1.6.0, before 1.8.3 (fixed in 1.8.3)

Published 2026-04-08. Last modified 2026-07-24.