CVE-2026-7803
Received Received - Intake

Arbitrary Code Execution in IBM Langflow OSS

Publication date: 2026-06-30

Last updated on: 2026-06-30

Assigner: IBM Corporation

Description
IBM Langflow OSS 1.0.0 through 1.10.0 could allow arbitrary code execution due to improper validation of flow nodes with missing or empty component type fields.

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Meta Information

Published
2026-06-30
Last Modified
2026-06-30
Generated
2026-07-01
AI Q&A
2026-06-30
EPSS Evaluated
N/A
NVD
CVE-2026-7803
EUVD
EUVD-2026-40383

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ibm langflow_oss From 1.0.0 (inc) to 1.10.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

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Executive Summary

CVE-2026-7803 is a vulnerability in IBM Langflow OSS versions 1.0.0 through 1.10.0 that allows arbitrary code execution. This happens because the software improperly validates flow nodes that have missing or empty component type fields.

Specifically, the flow validation logic bypasses custom component restrictions when nodes lack a type value, which enables malicious component code to execute at build time even if custom components are disabled.

This vulnerability is classified under CWE-20 (Improper Input Validation) and has a critical severity with a CVSS base score of 9.8.

Impact Analysis

This vulnerability can have severe impacts including unauthorized arbitrary code execution, which compromises the confidentiality, integrity, and availability of the affected system.

  • Confidentiality impact: attackers could access sensitive data.
  • Integrity impact: attackers could modify or corrupt data.
  • Availability impact: attackers could disrupt system operations.

Because the vulnerability allows code execution without any privileges or user interaction, it poses a critical risk to environments running vulnerable versions of Langflow OSS.

Mitigation Strategies

IBM recommends upgrading to Langflow OSS version 1.10.1 to remediate the issue.

No workarounds are provided, so applying the update is the primary mitigation step.

Customers are advised to assess the impact of this vulnerability in their environments.

Compliance Impact

CVE-2026-7803 allows arbitrary code execution due to improper validation, which can impact the confidentiality, integrity, and availability of data.

Such impacts on data security could potentially affect compliance with common standards and regulations like GDPR and HIPAA, which require protection of sensitive data and system integrity.

However, the provided information does not explicitly detail how this vulnerability affects compliance with these specific standards.

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