CVE-2026-79742

Received Received - Intake

Remote Code Execution in IBM Langflow OSS

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 code due to an incomplete environment variable blocklist.

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-2026-79742

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-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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 code. This is due to an incomplete blocklist for environment variables, allowing malicious input to bypass restrictions.

Impact Analysis

An attacker could gain control over the affected system, leading to unauthorized code execution. This may result in data breaches, system compromise, or further network infiltration if the attacker escalates privileges.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules. Organizations may face legal penalties, reputational damage, and loss of compliance certifications.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.11.5 to address the incomplete environment variable blocklist issue. Ensure only authenticated users have access to the system to reduce the risk of remote exploitation.

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