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 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-25)

CWE

CWE-306

Published

2026-08-05

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• langflow:langflow

References

• https://www.ibm.com/support/pages/node/7282147

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