What is CVE-2026-104138?

CVE-2026-104138 is a medium-severity vulnerability in Openemr, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-11-05.

How severe is CVE-2026-104138?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Openemr

CVE-2026-104138

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, custom/ajax_download.php, custom/download_qrda.php, custom/export_qrda_xml.php, and custom/qrda_download.php validate CSRF but do not enforce the patients/med ACL used by the canonical CQM report page. The endpoints also accept an unscoped report_id, allowing a low-privilege authenticated user to reach report generation and download logic for other reports. In a clinic with generated CQM reports, this can expose QRDA Category One and Category Three clinical documents for patients in a measure. This issue is fixed in version 8.3.0.

Vulnerability class: Broken Access Control

Published 2026-11-05 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Openemr — versions < 8.3.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2026-104138?: CVE-2026-104138 is a medium-severity vulnerability in Openemr, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-11-05.
How severe is CVE-2026-104138?: Medium severity. CVSS v3 base score is 6.5 out of 10.