CVE-2026-7664 — Unauthenticated Flow Execution via Webhook Endpoint in Langflow OSS
IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enf…
Published: 2026-06-22 · CVSS: 9.8 · CVSS 3.1
IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7