CVE-2026-8447: Langflow

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.11.2 suffer from a stored cross-site scripting vulnerability in the Playground chat interface.

Affected products

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

Published 2026-09-04. Last modified 2026-09-08.