CVE-2026-78569: Langflow

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

IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to execute arbitrary code due to an incomplete denylist in the security scanner.

Affected products

• Langflow Langflow: from 1.0.0, before 1.11.6 (fixed in 1.11.6)

Published 2026-09-10. Last modified 2026-09-16.