CVE-2026-10546: Langflow

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the URL component ( src/lfx/src/lfx/components/data_source/url.py ) due to a Time-of-Check/Time-of-Use (TOCTOU) race condition that can be exploited via DNS rebinding.

Affected products

• Langflow Langflow: from 1.0.0, up to and including 1.9.3

Published 2026-06-30. Last modified 2026-07-02.