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 mcp_composer_enabled=true (default) and projects are configured with auth_type=oauth .

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7282147	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) IBM Langflow OSS 1.0.0 hasta 1.10.3 contienen una vulnerabilidad de omisión de autenticación en el endpoint del compositor del Protocolo de Contexto del Modelo (MCP) cuando mcp_composer_enabled=true (por defecto) y los proyectos están configurados con auth_type=oauth.

Information

Published : 2026-08-05 17:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-8446

Mitre link : CVE-2026-8446

CVE.ORG link : CVE-2026-8446

JSON object : View

Products Affected

langflow

langflow

CWE

CWE-306

Missing Authentication for Critical Function

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