CVE-2026-27943
OpenEMR's Eye Exam View Trusts form_id Without Verifying Patient/Encounter Ownership
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.
INFO
Published Date :
Feb. 26, 2026, 2:16 a.m.
Last Modified :
Feb. 27, 2026, 2:51 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply the fix from the OpenEMR GitHub main branch.
- Ensure all user requests include patient context verification.
- Update OpenEMR to the latest secure version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-27943.
| URL | Resource |
|---|---|
| https://github.com/openemr/openemr/commit/c87489bf63f2701b634d948279e104f2ed3df1c0 | Patch |
| https://github.com/openemr/openemr/security/advisories/GHSA-q96x-qw99-6xq9 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-27943 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-27943
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-27943 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-27943 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Feb. 27, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* versions up to (including) 8.0.0 Added Reference Type GitHub, Inc.: https://github.com/openemr/openemr/commit/c87489bf63f2701b634d948279e104f2ed3df1c0 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/openemr/openemr/security/advisories/GHSA-q96x-qw99-6xq9 Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Feb. 26, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-639 Added Reference https://github.com/openemr/openemr/commit/c87489bf63f2701b634d948279e104f2ed3df1c0 Added Reference https://github.com/openemr/openemr/security/advisories/GHSA-q96x-qw99-6xq9