What is CVE-2026-33934?

CVE-2026-33934 is a medium-severity vulnerability in Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-03-25.

How severe is CVE-2026-33934?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Openemr

CVE-2026-33934

OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0.3 have a missing authorization check in `portal/sign/lib/show-signature.php` that allows any authenticated pat…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.001 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Openemr — versions < 8.0.0.3

Weakness classification (CWE)

References

https://github.com/openemr/openemr/security/advisories/GHSA-w9w5-7x6h-657q (x_refsource_CONFIRM)
https://github.com/openemr/openemr/commit/ae7ee1872d2e6300b165e24687cc90cf6847a4e5 (x_refsource_MISC)
https://github.com/openemr/openemr/releases/tag/v8_0_0_3 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33934?: CVE-2026-33934 is a medium-severity vulnerability in Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-03-25.
How severe is CVE-2026-33934?: Medium severity. CVSS v3 base score is 4.3 out of 10.