Insecure Direct Object Reference in OpenEMR Affects Patient Data Privacy
CVE-2026-124460

7.1HIGH

Key Information:

Vendor

Openemr

Status
Openemr
Vendor
CVE Published:
8 November 2026

What is CVE-2026-124460?

OpenEMR versions prior to 8.3.0 have a vulnerability that allows authenticated users to access other patients' sensitive demographic information. This is due to improper handling of user input in the PortalPatientController::Read() function, which can be exploited by manipulating the patientId query string parameter. Such exposure may lead to unauthorized access to personal health information (PHI), including names, addresses, Social Security Numbers (SSNs), and insurance details.

Affected Version(s)

openemr 0 < 8.3.0

openemr 8.3.0

References

https://github.com/openemr/openemr/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/openemr-before-8.3.0...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Firehed
.