Github
CVE-2026-27943
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
4DescriptionGitHub Advisory
OpenEMR is a free and open source electronic health records and medical practice management application. In versions up to and including 8.0.0, the eye exam (eye_mag) view loads data by form_id (or equivalent) without verifying that the form belongs to the current user’s patient/encounter context. An authenticated user can access or edit any patient’s eye exam by supplying another form ID; in some flows the session’s active patient may also be switched. A fix is available on the main branch of the OpenEMR GitHub repository.
AnalysisAI
Authenticated users in OpenEMR through version 8.0.0 can access and modify eye exam records belonging to other patients by manipulating form IDs, bypassing patient context validation. This allows disclosure or alteration of sensitive medical data across the patient database, and public exploit code exists for this vulnerability. A patch is available on the main branch of the OpenEMR repository.
Technical ContextAI
Classified as CWE-639 (Authorization Bypass Through User-Controlled Key). Affects Openemr. OpenEMR is a free and open source electronic health records and medical practice management application. In versions up to and including 8.0.0, the eye exam (eye_mag) view loads data by form_id (or equivalent) without verifying that the form belongs to the current user’s patient/encounter context. An authenticated user can access or edit any patient’s eye exam by supplying another form ID; in some flows the session’s active patient may also be switched. A fix is available on the main branch
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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