---
cve: "CVE-2026-34055"
severity: "HIGH"
cvss: 8.1
epss: "0.3%"
vendor: "OpenEMR"
kev: false
exploited: false
published: "2026-03-26 00:16:41"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-24T11:19:09+02:00"
---

# CVE-2026-34055

> 8.1 HIGH · 🧪 PoC

## Beschreibung

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the legacy patient notes functions in `library/pnotes.inc.php` perform updates and deletes using `WHERE id = ?` without verifying that the note belongs to a patient the user is authorized to access. Multiple web UI callers pass user-controlled note IDs directly to these functions. This is the same class of vulnerability as CVE-2026-25745 (REST API IDOR), but affects the web UI code paths. Version 8.0.0.3 patches the issue.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 7c96c8eefe460d6fadbccbe93d0fa6bf819acd69 (Commit)
- 214c9b4585a6f1c8c22750172d47f0e258fec0bf (Commit)

## Referenzen

- <https://github.com/openemr/openemr/security/advisories/GHSA-8gj5-r8vm-mghq>
- <https://github.com/openemr/openemr/commit/214c9b4585a6f1c8c22750172d47f0e258fec0bf>
- <https://github.com/openemr/openemr/releases/tag/v8_0_0_3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-34055) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_