CVE-2026-78571

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 unguarded eval() call on attacker-controlled input.

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-2026-78571

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 contain a vulnerability where a remote authenticated attacker can execute arbitrary code. This is due to an unguarded eval() call that processes attacker-controlled input, allowing code injection.

Impact Analysis

An attacker could exploit this to run malicious code on the affected system, potentially leading to unauthorized access, data theft, or system compromise. Since it requires authentication, the attacker must first gain valid credentials.

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 may result in legal penalties or reputational damage.

Mitigation Strategies

Update IBM Langflow OSS to a version beyond 1.11.5 to address the unguarded eval() call vulnerability. If immediate update is not possible, restrict network access to the application and monitor for suspicious activity.

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