CVE-2026-8446

High

Open

TLP:CLEAR

Langflow is affected by security vulnerabilities in Model Context Protocol features

NVD CVE.org

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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 .

Details

CVSS Score: 7.5
EPSS Score ⓘ: 0.28%

21th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Confidence: 90%
Published: Aug 5, 2026
Last Modified: Aug 5, 2026

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