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Medium · 6.5 CVE-2026-124485 EUVD-2026-119540GHSA-mm3c-hq5r-q7pg

OpenEMR before 8.3.0 Cross-Patient Document Disclosure via Onsite Documents API

Published Nov 8, 2026 · Updated Nov 12, 2026 · Assigned by VulnCheck

Description

OpenEMR before 8.3.0 contains an authorization bypass vulnerability in the patient portal onsitedocuments API that allows authenticated patients to read other patients' documents by overriding query criteria. Attackers can send empty pid_Equals and denialReason_IsNotLike parameters to remove patient scoping and locked filters, exposing consent bodies, signatures, file paths, and template data.

Affected products

VendorProductAffectedFixed
openemr openemr < 8.3.0 8.3.0

References