What is CVE-2026-34055?

CVE-2026-34055 is a high-severity vulnerability in Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-03-25.

How severe is CVE-2026-34055?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Openemr

CVE-2026-34055

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 =…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (3.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Openemr — versions < 8.0.0.3

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/openemr/openemr/security/advisories/GHSA-8gj5-r8vm-mghq (x_refsource_CONFIRM)
https://github.com/openemr/openemr/commit/214c9b4585a6f1c8c22750172d47f0e258fec0bf (x_refsource_MISC)
https://github.com/openemr/openemr/releases/tag/v8_0_0_3 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34055?: CVE-2026-34055 is a high-severity vulnerability in Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-03-25.
How severe is CVE-2026-34055?: High severity. CVSS v3 base score is 8.1 out of 10.