CVE-2026-78569

Received Received - Intake

IBM Langflow OSS Code Execution 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 an authenticated attacker to execute arbitrary code due to an incomplete denylist in the security scanner.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-78569

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 flaw where an authenticated attacker could bypass security restrictions due to an incomplete denylist in the security scanner. This allows execution of arbitrary code on the affected system.

Impact Analysis

An attacker with valid credentials could exploit this to run malicious code on your system, potentially leading to data breaches, unauthorized access, or system compromise. The high CVSS score indicates significant risk.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance risks fines and legal consequences.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.11.5 to ensure the denylist is complete and prevents arbitrary code execution by authenticated attackers.

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