OpenEMR Missing Authorization and SQL Injection Vulnerabilities

Executive Summary

CVE-2026-126455 is a high-severity vulnerability in OpenEMR versions before 8.5.0. It involves missing authorization checks and SQL injection flaws in multiple components like reports, portals, transactions, and immunizations. Low-privileged users such as Front Office clerks can exploit these issues to read sensitive data, hijack identities, and forge clinical records.

Useful 0 Not Useful 0

Detection Guidance

To detect this vulnerability, check if your OpenEMR version is below 8.5.0. Use commands like 'grep -r "openemr" /var/www/html' or check the version in the OpenEMR interface under Administration > System Information. Monitor database logs for unusual SQL queries or unauthorized access attempts in report, portal, transaction, or immunization components.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability allows attackers to read sensitive database tables including user password hashes, hijack patient portal identities, forge clinical records, and delete or modify immunization records. It can lead to significant data breaches, system compromise, and loss of patient trust.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability likely violates compliance with GDPR and HIPAA due to unauthorized access to sensitive patient data, potential data breaches, and lack of proper access controls. It could result in legal penalties, reputational damage, and loss of certification for organizations using affected OpenEMR versions.

Useful 0 Not Useful 0

Mitigation Strategies

Immediately upgrade OpenEMR to version 8.5.0 or later. If upgrading is not possible, restrict network access to OpenEMR, enforce strict ACLs for low-privileged users, and audit database permissions. Disable unused components like Syndromic Surveillance and patient portal features until patched.

Useful 0 Not Useful 0