CVE-2026-50757 in next-ai-draw-io
Summary
by MITRE • 07/21/2026
Directory Traversal vulnerability in DayuanJiang next-ai-draw-io 0.4.13 allowsa remote attacker to execute arbitrary code via the nex-ai-draw-io/mcp-server
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Analysis
by VulDB Data Team • 07/21/2026
A directory traversal vulnerability exists in the DayuanJiang next-ai-draw-io version 0.4.13 component known as nex-ai-draw-io/mcp-server which presents a critical security risk to affected systems. This vulnerability stems from improper input validation and path handling within the server implementation, allowing malicious actors to manipulate file system access through crafted requests that traverse directory boundaries. The flaw enables attackers to access files outside of intended directories, potentially leading to arbitrary code execution or sensitive data exposure.
The technical implementation of this vulnerability falls under CWE-22 which specifically addresses directory traversal or path traversal flaws in software systems. These vulnerabilities occur when applications fail to properly sanitize user-supplied input that contains directory path information, allowing attackers to navigate the file system beyond intended boundaries. In this case, the mcp-server component appears to process file paths without adequate validation mechanisms, making it susceptible to manipulation through specially crafted requests containing sequences like ../ or ..\.
The operational impact of this vulnerability is severe as it provides remote attackers with the capability to execute arbitrary code on affected systems. Attackers can leverage this weakness to access sensitive system files, modify application behavior, or establish persistent backdoors within the target environment. The mcp-server component, being a server-side process, could be exploited to gain elevated privileges and potentially compromise the entire system. This vulnerability affects organizations using DayuanJiang next-ai-draw-io 0.4.13 in production environments where network access to the vulnerable service is exposed.
From an attack perspective, this vulnerability aligns with ATT&CK technique T1059 which involves executing malicious code through command and scripting interpreters. The directory traversal allows attackers to manipulate server processes and potentially inject malicious payloads into the file system. Organizations should consider implementing network segmentation to limit access to the vulnerable mcp-server component and monitor for suspicious file access patterns. Additionally, the vulnerability demonstrates the importance of secure coding practices and input validation in preventing path traversal attacks.
Mitigation strategies include immediate patching of the next-ai-draw-io component to version 0.4.14 or later where this vulnerability has been addressed. System administrators should also implement proper input sanitization measures within the application, including validating and filtering all user-supplied paths before processing. Network-level protections such as firewall rules can restrict access to the mcp-server component from untrusted networks. Organizations should also conduct regular security assessments of their software dependencies and maintain up-to-date vulnerability management procedures to prevent similar issues in other components.
The vulnerability highlights broader security concerns related to API endpoint validation and server-side file handling mechanisms. Proper implementation of access controls, including principle of least privilege enforcement, can help minimize the impact of such vulnerabilities. Security teams should also establish incident response procedures that include rapid identification and remediation of directory traversal vulnerabilities to prevent exploitation attempts that may occur through automated scanning tools or targeted attacks. Regular code reviews focusing on file system operations and input validation routines are essential for maintaining secure software development practices throughout the application lifecycle.
Additional protective measures include implementing web application firewalls to detect and block suspicious path traversal attempts, establishing file access logging for audit purposes, and conducting security training for developers regarding secure coding practices. The vulnerability demonstrates how seemingly simple flaws in path handling can lead to significant security breaches, emphasizing the importance of comprehensive security testing including penetration testing and static code analysis to identify potential traversal vulnerabilities before they can be exploited by malicious actors.