Medium severity · published Feb 26, 2026
CVE-2026-27943
OpenEMR's Eye Exam View Trusts form_id Without Verifying Patient/Encounter Ownership
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openemr · openemr
<= 8.0.0 · source: vendor, NVD
Affected product
OP
openemr
openemr
More from openemr
9.9
CVE-2026-24848
OpenEMR Arbitrary File Write leading to Remote Code Execution
9.8
CVE-2026-24898
OpenEMR has an Unauthenticated MedEx Token Disclosure
9.8
CVE-2024-37734
An issue in OpenEMR 7.0.2 allows a remote attacker to escalate privileges viaa crafted POST request using the noteid parameter
9.1
CVE-2026-39932
OpenEMR 8.2.0 Remote Code Execution via CategoryTree eval() Injection
9.1
CVE-2026-32238
OpenEMR has Remote Code Execution in backup functionality