CVE-2026-78575

Received Received - Intake

IBM Langflow OSS Command Injection Vulnerability

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: IBM Corporation

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-10

Last Modified

2026-09-10

Generated

2026-09-11

AI Q&A

2026-09-11

EPSS Evaluated

N/A

NVD

CVE-2026-78575

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	langflow_oss	From 1.0.0 (inc) to 1.11.5 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-78	The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

Executive Summary

IBM Langflow OSS versions 1.0.0 through 1.11.5 have a vulnerability where a remote authenticated attacker can execute arbitrary commands. This is due to improper validation of command-line arguments in the MCP stdio server configuration.

Impact Analysis

An attacker could gain control over the affected system, leading to unauthorized command execution. This may result in data breaches, system compromise, or further network infiltration depending on the attacker's goals.

Compliance Impact

This vulnerability could lead to unauthorized access and data exposure, violating GDPR's data protection requirements and HIPAA's security and privacy rules. Organizations may face legal penalties, fines, or reputational damage.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.11.5 to address the improper command-line argument validation in the MCP stdio server configuration.

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