# CVE-2026-104133: OpenEMR: Missing authorization in DORN `compendium_install.php` — non-admin destructive lab-compendium reinstall

Status: published. Published: 2026-11-05. Updated: 2026-11-09.

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, interface/modules/custom_modules/oe-module-dorn/public/compendium_install.php checks authentication and CSRF but does not require the admin/users ACL enforced by sibling DORN administration scripts. When the DORN module is enabled, a low-privilege authenticated user can supply a labGuid that causes LabCompendiumInstall::uninstall() to delete detail and result procedure types and deactivate order types before the reinstall step. The action can corrupt lab-ordering configuration and require an administrator to restore the compendium. This issue is fixed in version 8.3.0.

## Remediation

- fix: OpenEMR: GitHub reports patched versions 8.3.0. Check the advisory for the affected release branch. (source: GitHub GHSA-jh2v-595q-h9vc) — https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc

## Affected products and versions

- openemr / openemr: < 8.3.0 (affected). Source: CNA: GitHub_M
-  / OpenEMR (OpenEMR): < 8.3.0 (affected, GitHub advisory range). Source: GitHub GHSA-jh2v-595q-h9vc

## Severity and prioritization

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L; source: CNA: GitHub_M

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: 0.38% as of 2026-11-09; percentile 32.55%

- SSVC: exploitation poc; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-862

## Exploit evidence

- exploit: https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc (ADP: CISA-ADP)

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc (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)

- https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc (ADP: CISA-ADP; exploit)

- https://github.com/openemr/openemr/commit/7973cab3fe3f2fd2374ed71c02605e3c93491c36 (security-advisories@github.com)

- https://github.com/openemr/openemr/pull/13200 (security-advisories@github.com)

- https://github.com/openemr/openemr/releases/tag/v8_3_0 (security-advisories@github.com)

- https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc (security-advisories@github.com)

- https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc (134c704f-9b21-4f2e-91b3-4a467353bcc0)

- https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc (GitHub Security Advisories; advisory)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-104133; retrieved 2026-11-09; source updated 2026-11-09

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-104133; retrieved 2026-11-10; source updated 2026-11-09

- GitHub Security Advisories: https://github.com/openemr/openemr/security/advisories/GHSA-jh2v-595q-h9vc; retrieved 2026-11-07; source updated 2026-10-01

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-104133; retrieved 2026-11-09; source updated Not reported

Revision: 4d44e392753bb0746b6a9de3b9e1ded7b2a00718c16d6964178ce9d949f3b149

Canonical: https://y2.dev/cve/CVE-2026-104133

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