OpenEMR before 8.3.0 contains an unsanitized deserialization vulnerability that allows authenticated attackers to control patient-matching criteria by supplying a crafted serialized key parameter. Attackers can send serialized arrays to interface/orders/patient_match_dialog.php to enumerate patients or force matches that associate lab orders with the wrong patient.

Project Subscriptions

Vendors Products
Open-emr Subscribe
Openemr Subscribe
Openemr Subscribe
Openemr Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 13 Nov 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Openemr
Openemr openemr
Vendors & Products Openemr
Openemr openemr

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Description OpenEMR before 8.3.0 contains an unsanitized deserialization vulnerability that allows authenticated attackers to control patient-matching criteria by supplying a crafted serialized key parameter. Attackers can send serialized arrays to interface/orders/patient_match_dialog.php to enumerate patients or force matches that associate lab orders with the wrong patient.
Title OpenEMR before 8.3.0 Unsanitized Deserialization via patient_match_dialog.php
First Time appeared Open-emr
Open-emr openemr
Weaknesses CWE-502
CPEs cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*
Vendors & Products Open-emr
Open-emr openemr
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T15:54:19.608Z

Reserved: 2026-11-10T20:18:40.992Z

Link: CVE-2026-126322

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-13T10:17:38.550

Modified: 2026-11-13T16:18:13.610

Link: CVE-2026-126322

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-14T15:00:08Z

Weaknesses