CVE-2026-18903 in warehouse
Summary
by MITRE • 08/05/2026
A vulnerability was determined in yeqifu warehouse up to aaf29962ba407d22d991781de28796ee7b4670e4. This issue affects some unknown processing of the file src/main/java/com/yeqifu/sys/controller/FileController.java. This manipulation of the argument path causes path traversal. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 08/05/2026
This vulnerability represents a critical path traversal flaw in the yeqifu warehouse system that allows remote attackers to manipulate file paths through the FileController component. The issue exists within the src/main/java/com/yeqifu/sys/controller/FileController.java file where user-supplied path arguments are processed without adequate validation or sanitization. This type of vulnerability falls under CWE-22 Path Traversal attacks, which occur when applications fail to properly validate input that contains directory path information, enabling attackers to access files outside the intended directory structure. The vulnerability is particularly dangerous because it permits remote exploitation without requiring authentication, making it accessible to any attacker who can interact with the affected system.
The technical implementation of this flaw demonstrates a lack of proper input validation and sanitization mechanisms within the file handling controller. When arguments containing path information are processed, the application fails to verify that the requested paths remain within authorized boundaries, allowing attackers to construct malicious paths that traverse up directory structures using sequences like "../". This vulnerability enables unauthorized access to sensitive files, directories, and potentially system resources that should remain protected. The rolling release deployment model of this product compounds the risk as there are no clear version identifiers for affected or fixed releases, making it difficult for organizations to determine their exposure level or implement appropriate patches.
The operational impact of this vulnerability is severe and multifaceted, affecting both data confidentiality and system integrity. Remote attackers can potentially access configuration files, database credentials, application source code, and other sensitive information that should remain protected within the application's designated directories. This could lead to complete system compromise, data exfiltration, and potential lateral movement within network environments. The vulnerability may also enable attackers to upload malicious files or execute arbitrary code if the affected system allows file uploads combined with this path traversal capability. According to ATT&CK framework, this represents a path traversal attack that can be categorized under technique T1083 File and Directory Discovery, followed by potential T1566 Phishing for Information or T1213 Data from Information Repositories techniques.
Organizations must implement immediate mitigations including input validation and sanitization of all file path arguments, implementing proper access controls and directory restrictions, and deploying web application firewalls to detect and block malicious path traversal attempts. The lack of vendor response despite early contact suggests potential security negligence or delayed patch development that organizations should monitor closely. Given the public disclosure status and active exploit availability, defensive measures should be implemented immediately without delay. Regular security audits of file handling components and input validation mechanisms are essential to prevent similar vulnerabilities in other parts of the application stack, particularly focusing on areas where user input directly influences file system operations. The rolling release model should not be used as an excuse for delayed security response, as organizations must maintain awareness of their software's security posture through continuous monitoring and vulnerability assessment practices.