CVE-2026-33304: Open-EMR Openemr

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, an authorization bypass in the dated reminders log allows any authenticated non-admin user to view reminder messages belonging to other users, including associated patient names and free-text message content, by crafting a GET request with arbitrary user IDs in the `sentTo[]` or `sentBy[]` parameters. Version 8.0.0.2 fixes the issue.

Affected products

• Open-EMR Openemr: before 8.0.0.2 (fixed in 8.0.0.2)

Published 2026-03-19. Last modified 2026-06-17.