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Vulnerabilities

Vulnerability · CVE-2026-27943

OpenEMR is a free and open source electronic health records and medical practice management application.

Published Feb 26, 2026 · catalog updated Jun 17, 2026 · OpenEMR is a free

Check if you run it

No confirmed exploitation is on record for CVE-2026-27943. EPSS is 0.47%. Act only if a listed version of OpenEMR is a free is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (OpenEMR is a free).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.47%
Remediation
Version ranges on file
Affected products
cpe open-emr/openemr · stated 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 (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 branch of the OpenEMR GitHub repository.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe open-emr/openemrversion unspecified
  • stated openemr<= 8.0.0

How to fix CVE-2026-27943

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27943. EPSS is 0.47%. Act only if a listed version of OpenEMR is a free is installed.

Which versions are affected?

Compare what you have installed with <= 8.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.47%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 26, 2026 · NIST NVD

    Detected

    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 (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 t

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 (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 t

Sources

  • CVE.orgVulnerability recordCVE-2026-27943

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27943

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-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 (or equivalent) without verifying that the form belongs to the current user’s patien

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.