Unrated severityNVD Advisory· Published Aug 5, 2026· Updated Aug 5, 2026
Langflow is affected by security vulnerabilities in Model Context Protocol features
CVE-2026-8446
Description
IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP) composer endpoint when mcp_composer_enabled=true (default) and projects are configured with auth_type=oauth .
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Affected products
1- Range: 1.0.0 - 1.10.3
Patches
Vulnerability mechanics
References
1- www.ibm.com/support/pages/node/7282147mitrevendor-advisorypatch
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