CVE-2026-18545: Langflow

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.11.1 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Affected products

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

Published 2026-08-28. Last modified 2026-08-31.