CVE-2026-78575

High

Description

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Langflow

PublishedSep 10, 2026

First seenSep 10, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

langflow langflow1.11.6 or later

Patches

ibm.com/support/pages/node/7286666

Affected products

Product	Affected versions	Fixed in
langflow langflow	1.0.0 ≤ v < 1.11.6	1.11.6

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