CVE-2026-86302: Hospital Information System Data Exposure

CVE-2026-86302 Overview

CVE-2026-86302 is an information disclosure vulnerability in code-projects Hospital Information System 1.0. The flaw resides in the SQL Database Backup File Handler component, specifically the exposed /HIS/his.sql file. An unauthenticated remote attacker can retrieve the SQL backup file directly from the web root, disclosing sensitive database contents such as schema definitions, credentials, and patient records. The issue is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor. Public exploitation details have been released, increasing the likelihood of opportunistic scanning and abuse against exposed installations.

Critical Impact
Remote, unauthenticated attackers can download the /HIS/his.sql database backup, exposing healthcare data and application secrets without leaving typical attack artifacts.

Affected Products

code-projects Hospital Information System 1.0
Deployments exposing the /HIS/his.sql SQL backup file via the web root
Web-facing instances that serve .sql files without access restrictions

Discovery Timeline

2026-09-07 - CVE-2026-86302 published to the National Vulnerability Database (NVD)
2026-09-09 - Last updated in NVD database
2026-09-11 - EPSS score published at 0.311%

Technical Details for CVE-2026-86302

Vulnerability Analysis

The vulnerability stems from a raw SQL database backup file, his.sql, being placed inside the publicly accessible /HIS/ web directory. The web server delivers the file as static content to any client that requests it. No authentication, authorization, or MIME filtering blocks the download. Because the file contains a full logical dump of the Hospital Information System database, an attacker who fetches it obtains schema layouts, application accounts, hashed or plaintext credentials, and stored patient information. The disclosure is one-shot: a single HTTP GET request yields the entire database state at backup time. Further technical write-up is available in the public GitHub CVE Analysis and the VulDB CVE-2026-86302 entry.

Root Cause

The root cause is an insecure deployment pattern combined with missing server-side access control. The application ships or generates SQL backup artifacts inside the web-served directory tree. The web server has no rule to deny .sql extensions or restrict /HIS/his.sql to administrative sessions. This is a classic [CWE-200] information exposure caused by predictable file placement and missing authorization checks.

Attack Vector

Exploitation requires only network access to the target web server. An attacker issues an HTTP GET request such as GET /HIS/his.sql HTTP/1.1 against the hostname running the Hospital Information System. The server returns the SQL dump as plaintext. Discovery is trivial through content scanners, search engine indexing, or wordlist-based directory brute-force tooling. No user interaction, no privileges, and no chained vulnerabilities are needed.

No verified exploit code is published for this CVE. Refer to the VulDB Vulnerability #399466 entry for additional context.

Detection Methods for CVE-2026-86302

Indicators of Compromise

HTTP GET requests to /HIS/his.sql or other paths ending in .sql within the Hospital Information System web root.
Web server access logs showing large responses served from static .sql files to external IP addresses.
Requests originating from known scanner user-agents or from IPs performing broad directory enumeration against /HIS/.

Detection Strategies

Alert on any successful (HTTP 200) response for URIs matching \.sql$ served from application directories.
Correlate outbound egress spikes with prior /HIS/his.sql requests to identify successful data exfiltration.
Hunt in historical web logs for patterns indicating enumeration of backup, dump, or archive files (.sql, .bak, .zip, .tar.gz).

Monitoring Recommendations

Ingest web server access logs into a centralized analytics platform and normalize them for URI, status code, and response size.
Deploy file integrity monitoring on the application web root to detect creation of new .sql backup artifacts.
Track requests to non-application static content paths and baseline expected file types to surface unexpected extensions.

How to Mitigate CVE-2026-86302

Immediate Actions Required

Remove /HIS/his.sql and any other SQL backup files from web-accessible directories immediately.
Rotate all database credentials, application secrets, and administrative passwords contained in the exposed dump.
Review web server access logs for prior successful downloads of his.sql and treat any exposed patient data as breached under applicable regulations.
Restrict access to the /HIS/ directory to authenticated administrative sessions until a vendor fix is available.

Patch Information

No vendor patch is listed in the NVD entry or the referenced VulDB CVE-2026-86302 advisory at the time of publication. Administrators should monitor the Code Projects Resource site for updated releases and apply configuration-level mitigations in the interim.

Workarounds

Add a web server rule that returns HTTP 403 for any URI matching \.(sql|bak|dump|zip|tar\.gz)$.
Relocate database backups outside the web root to a directory not served by the web server.
Enforce authentication on the entire /HIS/ path and require least-privilege access for administrative resources.
Deploy a web application firewall rule to block requests to /HIS/his.sql and similar backup filenames.

bash

# Configuration example: Apache httpd - block SQL and backup files
<FilesMatch "\.(sql|bak|dump|old|backup)$">
    Require all denied
</FilesMatch>

# Nginx equivalent
location ~* \.(sql|bak|dump|old|backup)$ {
    deny all;
    return 403;
}