CVE-2026-81940

Received Received - Intake

IBM Langflow OSS Code Execution via Flow Display Names

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 improper neutralization of special characters in flow display names.

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-2026-81940

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	langflow	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 are vulnerable to arbitrary code execution due to improper neutralization of special characters in flow display names. This flaw allows a remote authenticated attacker to inject malicious code.

Impact Analysis

An attacker could exploit this to execute arbitrary commands on the affected system, potentially leading to data breaches, system compromise, or unauthorized access to sensitive information.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations may face legal penalties and reputational damage.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.11.5 to address the improper neutralization of special characters in flow display names. Ensure only trusted users have authentication to prevent remote attackers from exploiting this issue.

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