IBM Langflow OSS Authentication Bypass Vulnerability

IBM Langflow OSS is the open-source version of Langflow that IBM officially integrates and promotes. IBM Langflow OSS has a vulnerability related to authentication bypass. This vulnerability arises when the MCP Composer endpoint is set to mcpcomposerEnabled=true default value and the project...

CVE-2026-8446

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol MCP composer endpoint when mcpcomposerenabled=true default and projects are configured with authtype=oauth...

CVE-2026-8446

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol MCP composer endpoint when mcpcomposerenabled=true default and projects are configured with authtype=oauth...

CVE-2026-8446

Langflow OSS versions 1.0.0–1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP) composer endpoint when mcp_composer_enabled=true (default) and projects use auth_type=oauth. The issue, tracked under CVE-2026-8446, enables bypassing authentication for the MCP c...

CVE-2026-8446

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol MCP composer endpoint when mcpcomposerenabled=true default and projects are configured with authtype=oauth...

EUVD-2026-53465

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol MCP composer endpoint when mcpcomposerenabled=true default and projects are configured with authtype=oauth...