CVE-2026-81204

Analyzed Analyzed - Analysis Complete

Code Injection in IBM Langflow OSS

Publication date: 2026-09-10

Last updated on: 2026-09-16

Assigner: IBM Corporation

Description

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-10

Last Modified

2026-09-16

Generated

2026-10-01

AI Q&A

2026-09-11

EPSS Evaluated

2026-09-29

NVD

CVE-2026-81204

EUVD

EUVD-2026-75784

Affected Vendors & Products

Vendor	Product	Version / Range
langflow	langflow	From 1.0.0 (inc) to 1.11.6 (exc)

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 are vulnerable to arbitrary code execution due to code injection during graph construction. This means an attacker could remotely inject and execute malicious code on the affected system.

Detection Guidance

This vulnerability involves code injection during graph construction in IBM Langflow OSS versions 1.0.0 through 1.11.5. To detect it, inspect network traffic for unusual requests targeting Langflow endpoints, particularly those involving graph construction or API calls. Check server logs for unexpected code execution or command injection patterns. Verify if your Langflow instance is running a vulnerable version by checking the installed version via package managers or application interfaces.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary code on your system. This could lead to unauthorized access, data theft, system compromise, or further network infiltration if exploited.

Compliance Impact

This vulnerability allows remote attackers to execute arbitrary code, which could lead to unauthorized access, data breaches, or manipulation of sensitive information. Such risks may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data privacy) by exposing personal or protected health information.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.11.5 to address the code injection vulnerability during graph construction.

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