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Medium · 6.5 CVE-2026-126415 EUVD-2026-125028GHSA-89h2-455r-55qg

OpenEMR before 8.5.0 Missing Authorization via Patientvalidation Module

Published Nov 13, 2026 · Updated Nov 13, 2026 · Assigned by VulnCheck

Description

OpenEMR before 8.5.0 contains a missing authorization vulnerability in the Patient Validation module that allows any authenticated user to retrieve patient demographic records. Attackers can send direct requests with wildcard mf_lname or empty mf_ parameters to the patientvalidation endpoint to enumerate the entire patient_data table.

Affected products

VendorProductAffectedFixed
openemr openemr < 8.5.0 8.5.0

References