Auth bypass in Openemr
CVE-2026-124449
OpenEMR before 8.4.0 contains a missing authorization vulnerability in FHIR Media/:uuid and QuestionnaireResponse read routes that skip ACL checks. Non-patient API tokens lacking OpenEMR ACLs can request resources by uuid, bypassing compartment filtering to read any patient's documents and questionnaire responses.
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-6g45-38wc-5wg9) (vendor-advisory)
- VulnCheck Advisory: OpenEMR before 8.4.0 Missing Authorization via FHIR Media and QuestionnaireResponse Routes (third-party-advisory)
Frequently asked questions
- What is CVE-2026-124449?
- CVE-2026-124449 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-2026-124449?
- Medium severity. CVSS v3 base score is 6.5 out of 10.