CVE-2026-19286: Langflow

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of security restrictions on the A2A public endpoint.

Affected products

• Langflow Langflow: from 1.0.0, before 1.11.2 (fixed in 1.11.2)

Published 2026-08-28. Last modified 2026-09-01.