Auth bypass in Openemr
CVE-2026-124460
OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in PortalPatientController::Read() that allows authenticated patients to read other patients' pending demographic change requests. Attackers can supply another patient's ID in the patientId query string parameter to retrieve PHI including names, addresses, SSNs, and insurance information.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published .
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
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-rw79-jfg7-fgpm) (vendor-advisory)
- VulnCheck Advisory: OpenEMR before 8.3.0 IDOR in Patient Portal PortalPatientController (third-party-advisory)
Frequently asked questions
- What is CVE-2026-124460?
- CVE-2026-124460 is a medium-severity vulnerability in Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-11-08.
- How severe is CVE-2026-124460?
- Medium severity. CVSS v3 base score is 6.5 out of 10.