CVE-2026-1197: MineAdmin Information Disclosure Flaw

CVE-2026-1197 Overview

A vulnerability has been identified in MineAdmin versions 1.x and 2.x that allows information disclosure through the /system/downloadById endpoint. The vulnerability stems from improper input validation when processing the ID argument, enabling attackers to manipulate this parameter and gain access to sensitive information. While the attack can be initiated remotely over the network, the exploitation complexity is rated as high, making successful attacks more difficult to execute.

Critical Impact

Attackers with low-level privileges can remotely access sensitive information through parameter manipulation in the file download functionality, potentially exposing confidential data stored within the application.

Affected Products

• MineAdmin 1.x
• MineAdmin 2.x

Discovery Timeline

• 2026-01-20 - CVE CVE-2026-1197 published to NVD
• 2026-01-20 - Last updated in NVD database

Technical Details for CVE-2026-1197

Vulnerability Analysis

This vulnerability falls under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The affected component is the /system/downloadById endpoint in MineAdmin, which fails to properly validate or sanitize the ID parameter before processing download requests. This weakness allows authenticated attackers to manipulate the ID argument to access files or data they should not have permission to view.

The exploitation requires network access and low-level user privileges, though the attack complexity is considered high due to additional conditions that must be met for successful exploitation. The impact is limited to confidentiality, with no direct effect on system integrity or availability. A public exploit has been disclosed, increasing the urgency for organizations to assess their exposure.

Root Cause

The root cause of this vulnerability is improper input validation in the /system/downloadById functionality. The application fails to adequately verify that the provided ID parameter corresponds to a resource the authenticated user is authorized to access. This missing authorization check allows users to enumerate or directly reference file identifiers outside their permitted scope, resulting in information disclosure.

Attack Vector

The attack is executed remotely over the network against the /system/downloadById endpoint. An attacker with valid low-level credentials can manipulate the ID parameter in HTTP requests to reference files or data objects belonging to other users or containing sensitive system information.

The attack flow typically involves:

1. Authenticating to the MineAdmin application with minimal privileges
2. Identifying the /system/downloadById endpoint and its ID parameter
3. Systematically manipulating the ID value to access unauthorized resources
4. Extracting sensitive information from successful responses

Further technical details can be found in the GitHub Issue - MineAdmin Vulnerability.

Detection Methods for CVE-2026-1197

Indicators of Compromise

• Unusual patterns of requests to /system/downloadById endpoint with sequential or enumerated ID values
• Increased download activity from low-privileged user accounts
• Access logs showing repeated requests with varied ID parameters from single sessions
• Error responses or access denials logged in rapid succession indicating enumeration attempts

Detection Strategies

• Implement web application firewall (WAF) rules to detect parameter tampering and enumeration patterns targeting the downloadById endpoint
• Configure logging and alerting for anomalous request volumes to the /system/downloadById path
• Deploy intrusion detection signatures that identify ID manipulation patterns in HTTP requests
• Monitor for authenticated users accessing resources inconsistent with their privilege level

Monitoring Recommendations

• Enable detailed access logging for the MineAdmin application, particularly for file download operations
• Establish baseline metrics for normal download endpoint usage and alert on deviations
• Implement user behavior analytics to detect unusual access patterns from individual accounts
• Review audit logs regularly for evidence of unauthorized data access attempts

How to Mitigate CVE-2026-1197

Immediate Actions Required

• Review access controls on the /system/downloadById endpoint and implement proper authorization checks
• Restrict access to file download functionality to only required user roles
• Implement rate limiting on the affected endpoint to reduce enumeration effectiveness
• Consider temporarily disabling the downloadById feature if not business-critical until a patch is available

Patch Information

At the time of publication, the vendor (MineAdmin) has not responded to disclosure attempts and no official patch is available. Organizations should implement the workarounds below and monitor the VulDB entry for updates on remediation options.

Workarounds

• Implement application-layer access controls that validate user authorization for each resource request
• Deploy a web application firewall with rules to detect and block parameter manipulation attacks
• Add server-side validation to ensure the ID parameter corresponds to resources the authenticated user owns or is permitted to access
• Consider implementing indirect object references using randomized tokens instead of sequential IDs

# Example: Nginx rate limiting configuration for the affected endpoint
# Add to your nginx server configuration

location /system/downloadById {
    # Limit requests to 10 per minute per IP
    limit_req zone=download_limit burst=5 nodelay;
    
    # Log all access attempts for monitoring
    access_log /var/log/nginx/mineadmin_download.log;
    
    # Pass to upstream application
    proxy_pass http://mineadmin_backend;
}

# Define the rate limit zone in http block
# limit_req_zone $binary_remote_addr zone=download_limit:10m rate=10r/m;