CVE-2026-7663

IBM Langflow OSS 1.0.0 through 1.9.6 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...

CVE-2026-7663 Unauthenticated Cross-User MCP Resource Access and Tool Execution via Streamable Transport Authorization Bypass

IBM Langflow OSS 1.0.0 through 1.9.6 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...

CVE-2026-7664

Summary: IBM Langflow OSS versions 1.0.0–1.8.4 are affected by an unauthenticated access issue due to improper authorization enforcement on the Streamable MCP transport endpoint, potentially allowing access to protected MCP project resources and execution of MCP operations. Affected products/vers...