CVE-2026-126441: OpenEMR before 8.5.0 IDOR via CAMOS rx_print.php Prescription Disclosure

Published Nov 13, 2026

Updated

OpenEMR before 8.5.0 contains an insecure direct object reference vulnerability in the CAMOS rxprint.php printer that allows authenticated users to read other patients' prescriptions. Attackers can submit forged chrx parameters with global prescription IDs to disclose drug names, dosages, directions, and refill counts without medication permissions.

Event History

Nov 13, 2026

CVE Published

via MITRE·09:35 AM

Data Sourced

via MITRE·09:35 AM

DescriptionSeverityWeakness

Data Sourced

via NVD·10:17 AM

DescriptionSeverityWeakness

Frequently Asked Questions

Who can exploit this issue?

An authenticated OpenEMR user can exploit it. The vulnerable printer endpoint does not require medication permissions to disclose prescription information.

What does an attacker need to do?

The attacker needs to submit forged chrx_ parameters containing global prescription IDs to the CAMOS rx_print.php printer. Exploitation is network-accessible, but the stated attack complexity is high.

What information could be exposed?

An attacker may read other patients' prescription details, including drug names, dosages, directions, and refill counts.

Which versions are affected?

OpenEMR versions before 8.5.0 are affected. Upgrading to 8.5.0 or later addresses the affected version range described in the advisory.

CVE-2026-126441: OpenEMR before 8.5.0 IDOR via CAMOS rx_print.php Prescription Disclosure

Event History

Frequently Asked Questions

Who can exploit this issue?

What does an attacker need to do?

What information could be exposed?

Which versions are affected?

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Frequently Asked Questions

Who can exploit this issue?

What does an attacker need to do?

What information could be exposed?

Which versions are affected?