CVE-2026-27943

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openemr/openemr/commit/c87489bf63f2701b634d948279e104f2ed3df1c0	Patch
https://github.com/openemr/openemr/security/advisories/GHSA-q96x-qw99-6xq9	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-26 02:16

Updated : 2026-02-27 14:51

NVD link : CVE-2026-27943

Mitre link : CVE-2026-27943

CVE.ORG link : CVE-2026-27943

JSON object : View

Products Affected

open-emr

openemr

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

{"id": "CVE-2026-27943", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-02-26T02:16:22.547", "references": [{"url": "https://github.com/openemr/openemr/commit/c87489bf63f2701b634d948279e104f2ed3df1c0", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openemr/openemr/security/advisories/GHSA-q96x-qw99-6xq9", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "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\u2019s patient/encounter context. An authenticated user can access or edit any patient\u2019s eye exam by supplying another form ID; in some flows the session\u2019s active patient may also be switched. A fix is available on the `main` branch of the OpenEMR GitHub repository."}, {"lang": "es", "value": "OpenEMR es una aplicaci\u00f3n de gesti\u00f3n de la pr\u00e1ctica m\u00e9dica y de registros de salud electr\u00f3nicos de c\u00f3digo abierto y gratuita. En versiones hasta la 8.0.0 inclusive, la vista del examen ocular (eye_mag) carga datos por 'form_id' (o equivalente) sin verificar que el formulario pertenece al contexto de paciente/encuentro del usuario actual. Un usuario autenticado puede acceder o editar el examen ocular de cualquier paciente al proporcionar otro ID de formulario; en algunos flujos, el paciente activo de la sesi\u00f3n tambi\u00e9n puede ser cambiado. Una soluci\u00f3n est\u00e1 disponible en la rama 'main' del repositorio de GitHub de OpenEMR."}], "lastModified": "2026-02-27T14:51:27.900", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D995E4F-C6E0-47AC-9F5A-4E828BA9A292", "versionEndIncluding": "8.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}