CVE-2026-9077: IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server…

PriorityP356high8.5CVSS 3.1

AVNACLPRLUINSCCLIHAN

EPSS

0.32%

24.0th percentile

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host system.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ibm	langflow_oss	1.0.0 – 1.10.3	—
langflow	langflow	>= 1.0.0 < 1.11.0	1.11.0

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