# CVE-2026-104139: OpenEMR: Missing Authorization on Document Template Download Endpoint Allows Any Authenticated User to Read Another Patient's PHI

Status: published. Published: 2026-11-05. Updated: 2026-11-05.

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/ajax/set_pt.php allows any authenticated user to set an arbitrary patient identifier in the active session without an ACL check, and interface/patient_file/download_template.php trusts that session value while enforcing only CSRF validation. A low-privilege user can select another patient and download a rendered document template containing the patient's demographics, encounter information, allergies, medications, and problem list despite lacking patients/docs access. This issue is fixed in version 8.3.0.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- openemr / openemr: < 8.3.0 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-862

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-r3q3-p493-95x8 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/openemr/openemr/pull/13200 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/openemr/openemr/commit/7973cab3fe3f2fd2374ed71c02605e3c93491c36 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/openemr/openemr/releases/tag/v8_3_0 (CNA: GitHub_M; x_refsource_MISC)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-104139; retrieved 2026-11-05; source updated 2026-11-05

Revision: e25c62794e731d13cb292b7c96e427943e3dfaa3a3e6930babf8be7d825d3ae2

Canonical: https://y2.dev/cve/CVE-2026-104139

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