CVE-2026-126461

EUVD-2026-124963
OpenEMR before 8.5.0 contains a missing authorization vulnerability in library/ajax/user_settings.php that lets any authenticated user persist arbitrary global configuration overrides. Attackers can POST global:-prefixed keys to re-point external service hosts like CouchDB, eRx, phiMail, or SMTP to attacker-controlled servers, exfiltrating system credentials and patient PHI.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 29.53%
Common Weakness Enumeration
References
https://github.com/openemr/openemr/security/advisories/GHSA-prmv-3m3j-9v7j
https://www.vulncheck.com/advisories/openemr-before-8.5.0-missing-authorization-via-user-settings-php-global-override
https://github.com/openemr/openemr/security/advisories/GHSA-prmv-3m3j-9v7j