CVE-2026-19298: Langflow

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an authorization bypass in the flow build process.

Affected products

• Langflow Langflow: from 1.0.0, before 1.11.3 (fixed in 1.11.3)

Published 2026-09-04. Last modified 2026-09-10.