CVE-2026-78575: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to i
Summary
IBM Langflow OSS (open-source software) versions 1.0.0 through 1.11.5 has a security flaw where someone with login credentials could run harmful commands on the system. The problem is that the MCP stdio server (a component that handles communication through text input/output) doesn't properly check command-line arguments (instructions given when starting a program) before using them.
Vulnerability Details
8.8(high)
EPSS: 0.0%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
network
low
low
none
September 10, 2026
Classification
Affected Vendors
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Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-78575
First tracked: September 10, 2026 at 08:08 PM
Classified by LLM (prompt v3) · confidence: 92%