Vulnerability Details CVE-2026-103021
OpenEMR is a free and open source electronic health records and medical practice management application. From 6.0.0 until 8.3.0, interface/globals.php uses the unauthenticated authUser login parameter to populate temp_authuserid and load that account's user_settings before authentication succeeds. Existing usernames can therefore cause an additional database query and may apply visible customized settings, while nonexistent usernames skip that behavior. A remote unauthenticated actor can use timing or page differences to enumerate valid accounts for later credential attacks. This issue is fixed in version 8.3.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 28.3%
CVSS Severity
CVSS v3 Score 5.3
References
- https://github.com/openemr/openemr/commit/50f789fad45ada625fe8d0faf0c7a9c15ef52aa5
- https://github.com/openemr/openemr/pull/13133
- https://github.com/openemr/openemr/releases/tag/v8_3_0
- https://github.com/openemr/openemr/security/advisories/GHSA-rr38-hpxq-wwff
- https://github.com/openemr/openemr/security/advisories/GHSA-rr38-hpxq-wwff
Products affected by CVE-2026-103021
-
cpe:2.3:a:open-emr:openemr:6.0.0
-
cpe:2.3:a:open-emr:openemr:6.0.0.1
-
cpe:2.3:a:open-emr:openemr:6.0.0.2
-
cpe:2.3:a:open-emr:openemr:6.0.0.3
-
cpe:2.3:a:open-emr:openemr:6.0.0.4
-
cpe:2.3:a:open-emr:openemr:6.1.0
-
cpe:2.3:a:open-emr:openemr:6.1.0.1
-
cpe:2.3:a:open-emr:openemr:7.0.0
-
cpe:2.3:a:open-emr:openemr:7.0.0.1
-
cpe:2.3:a:open-emr:openemr:7.0.0.2
-
cpe:2.3:a:open-emr:openemr:7.0.1
-
cpe:2.3:a:open-emr:openemr:7.0.1.1
-
cpe:2.3:a:open-emr:openemr:7.0.2
-
cpe:2.3:a:open-emr:openemr:7.0.2.1
-
cpe:2.3:a:open-emr:openemr:7.0.2.2
-
cpe:2.3:a:open-emr:openemr:7.0.2.3
-
cpe:2.3:a:open-emr:openemr:7.0.3
-
cpe:2.3:a:open-emr:openemr:7.0.3.1
-
cpe:2.3:a:open-emr:openemr:7.0.3.2
-
cpe:2.3:a:open-emr:openemr:7.0.3.3
-
cpe:2.3:a:open-emr:openemr:7.0.3.4
-
cpe:2.3:a:open-emr:openemr:7.0.4
-
cpe:2.3:a:open-emr:openemr:7.3.0
-
cpe:2.3:a:open-emr:openemr:8.0.0
-
cpe:2.3:a:open-emr:openemr:8.0.0.1
-
cpe:2.3:a:open-emr:openemr:8.0.0.2
-
cpe:2.3:a:open-emr:openemr:8.0.0.3
-
cpe:2.3:a:open-emr:openemr:8.1.0
-
cpe:2.3:a:open-emr:openemr:8.2.0