CVE-2026-17624 in Langflow OSS
Summary
by MITRE • 08/05/2026
IBM Langflow OSS 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of module imports.
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Analysis
by VulDB Data Team • 08/05/2026
IBM Langflow open source software versions 1.0.0 through 1.10.3 contain a critical security vulnerability that enables remote authenticated attackers to execute arbitrary code on affected systems. This flaw stems from inadequate validation mechanisms within the module import functionality, allowing malicious actors to manipulate the import process and gain unauthorized code execution capabilities. The vulnerability exists in the software's handling of module imports where proper sanitization and validation checks are missing or insufficiently implemented.
The technical nature of this vulnerability aligns with CWE-470, which describes "Improper Neutralization of Special Elements used in External Calls," and represents a classic path traversal or code injection scenario within the module loading system. Attackers can exploit this weakness by crafting malicious module import requests that bypass normal validation checks, potentially allowing them to load and execute arbitrary Python modules or code. This type of vulnerability falls under the ATT&CK technique T1059.006 for "Command and Scripting Interpreter: Python" as the attacker can leverage the compromised module import mechanism to execute malicious payloads.
The operational impact of this vulnerability is severe as it affects the core functionality of the Langflow platform, which is designed for building and deploying language model applications. Remote authenticated attackers who already possess valid credentials can exploit this weakness to escalate their privileges and gain full control over affected systems. This creates a significant risk for organizations using these versions, as compromised accounts can lead to complete system compromise. The vulnerability affects all versions within the specified range, indicating it was likely introduced early in the software development lifecycle and persisted through multiple releases without proper remediation.
Organizations should immediately upgrade to patched versions of IBM Langflow to address this critical vulnerability. Additionally, implementing network segmentation and access controls can help limit the potential impact if exploitation occurs. The security community recommends monitoring for suspicious import activities and implementing strict module validation policies. System administrators should also consider deploying intrusion detection systems that can identify anomalous import patterns or unauthorized code execution attempts. Regular security assessments of the module loading subsystem and comprehensive input validation testing should be performed to prevent similar vulnerabilities in future releases. This vulnerability highlights the importance of secure coding practices and proper validation mechanisms, particularly when dealing with dynamic code loading features that are essential for flexible application frameworks but pose significant security risks if not properly secured.