CVE-2026-8446

HIGH

Langflow is affected by security vulnerabilities in Model Context Protocol features

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-8446 has a selected CVSS score of 7.5 (high).

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 .

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableYes
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 5, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Langflow OSS

Browse IBM / Langflow OSS
CVE List1.0.0 to ≤ 1.10.3affected

References

1