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 patient portal user to retrieve the drawn signature image of any staff member by supplying an arbitrary `user` value in the POST body. The companion write endpoint (`save-signature.php`) was already hardened against this same issue, but the read endpoint was not updated to match. Version 8.0.0.3 patches the issue.
Configurations

Configuration 1 (hide)

cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*

History

26 Mar 2026, 16:28

Type Values Removed Values Added
References () https://github.com/openemr/openemr/commit/ae7ee1872d2e6300b165e24687cc90cf6847a4e5 - () https://github.com/openemr/openemr/commit/ae7ee1872d2e6300b165e24687cc90cf6847a4e5 - Patch
References () https://github.com/openemr/openemr/releases/tag/v8_0_0_3 - () https://github.com/openemr/openemr/releases/tag/v8_0_0_3 - Product
References () https://github.com/openemr/openemr/security/advisories/GHSA-w9w5-7x6h-657q - () https://github.com/openemr/openemr/security/advisories/GHSA-w9w5-7x6h-657q - Exploit, Vendor Advisory
First Time Open-emr openemr
Open-emr
CPE cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*

26 Mar 2026, 00:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-26 00:16

Updated : 2026-03-26 16:28


NVD link : CVE-2026-33934

Mitre link : CVE-2026-33934

CVE.ORG link : CVE-2026-33934


JSON object : View

Products Affected

open-emr

  • openemr
CWE
CWE-639

Authorization Bypass Through User-Controlled Key

CWE-862

Missing Authorization