Executive Summary

CVE-2026-2106 is a vulnerability in the yeqifu warehouse project affecting the Notice Management component. Specifically, the functions addNotice, updateNotice, deleteNotice, and batchDeleteNotice in the NoticeController.java file lack proper authorization checks. This means that any authenticated user, regardless of their privilege level, can create, modify, or delete system notices without restriction.

Because these endpoints do not verify user permissions, unauthorized users can exploit this flaw to publish false information, remove important announcements, or disrupt internal communications within the system.

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Impact Analysis

This vulnerability allows unauthorized users to manipulate system notices, which can have several negative impacts:

• Spreading misinformation by publishing false or misleading notices.
• Concealing or deleting critical announcements that users rely on.
• Disrupting internal communications and trust within the organization.

Since the exploit can be performed remotely and requires only authenticated access, it poses a significant risk to the confidentiality, integrity, and availability of the notice management system.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability involves improper authorization on the notice management endpoints of the yeqifu warehouse system, specifically the addNotice, updateNotice, deleteNotice, and batchDeleteNotice functions. Detection can focus on monitoring or testing access to these endpoints.'}, {'type': 'paragraph', 'content': 'One way to detect the vulnerability is to attempt to perform notice management actions (such as deleting a notice) using a low-privileged or unauthorized user account and observe if the action succeeds without proper authorization.'}, {'type': 'paragraph', 'content': 'Suggested commands include sending HTTP POST requests to the affected endpoints to test authorization enforcement. For example, using curl to test the deleteNotice endpoint:'}, {'type': 'list_item', 'content': "curl -X POST -d 'id=<notice_id>' http://<target>/notice/deleteNotice -b cookies.txt"}, {'type': 'paragraph', 'content': "Here, 'cookies.txt' contains the session cookies of a low-privileged user. If the request succeeds in deleting a notice, it indicates the vulnerability is present."}, {'type': 'paragraph', 'content': 'Similarly, other endpoints like addNotice, updateNotice, and batchDeleteNotice can be tested by crafting appropriate POST requests with relevant data.'}] [2]

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Mitigation Strategies

Currently, there are no known patches or official mitigations available for this vulnerability as the project maintainers have not responded or provided fixes.

Immediate mitigation steps include restricting access to the affected notice management endpoints to trusted and authorized users only, for example by implementing network-level access controls such as firewall rules or VPN requirements.

Another approach is to disable or remove the affected endpoints temporarily if possible, to prevent unauthorized use.

Consider replacing the affected component or system with an alternative product that properly enforces authorization controls.

Monitoring logs for unauthorized access attempts and suspicious activity on the notice management endpoints is also recommended.

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