CVE-2026-124487 OpenEMR before 8.4.0 Improper Authorization in FHIR DocumentReference $docref

High 7.1 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-124487?

CVE-2026-124487 is a high-severity vulnerability in openemr, published on 8 Nov 2026.

Official description

OpenEMR before 8.4.0 contains an improper authorization vulnerability in the non-patient POST /fhir/DocumentReference/$docref route that allows low-privileged users to generate any patient's CCDA. Attackers with only demographics and documents permissions can supply a victim patient parameter, then download the full-chart CCDA from Patient Documents to exfiltrate clinical data.

Weakness: CWE-863

Which versions are affected by CVE-2026-124487?

How do I fix CVE-2026-124487?

No fix has been published for CVE-2026-124487 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-124487 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-124487 exists.

Sources

Also known as GHSA-g8pc-cv83-gmcj, GHSA-r79c-4hf6-fgp3.

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