Auth bypass in Openemr
CVE-2026-124459
OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in many encounter-form view and save endpoints that lack patient/encounter ownership checks. Authenticated clinical users can enumerate sequential form id values in requests such as soap/view.php and save.php to read and overwrite other patients' clinical records.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-3mg9-27fw-m9j6) (vendor-advisory)
- VulnCheck Advisory: OpenEMR before 8.3.0 Cross-Patient IDOR via Encounter Form Viewers and Save Handlers (third-party-advisory)
Frequently asked questions
- What is CVE-2026-124459?
- CVE-2026-124459 is a high-severity vulnerability in Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-11-08.
- How severe is CVE-2026-124459?
- High severity. CVSS v3 base score is 8.1 out of 10.