CVE-2026-81204: Langflow

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.

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.