Is CVE-2026-8446 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-8446?

CVE-2026-8446 has a CVSS v3 severity of HIGH (7.5).

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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 .