CVE-2026-8446

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CVSS 3.1

7.5 high

EPSS

<1%p21

Published

Aug 5, 2026 (Aug 5, 2026)

Modified

Aug 6, 2026

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 .

Vendors: langflow
Products: langflow
Weakness: CWE-306
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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