CVE-2026-17627: Langflow

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information and inject messages into workflow history due to improper authorization.

Affected products

• Langflow Langflow: from 1.0.0, before 1.10.3 (fixed in 1.10.3)

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