CVE-2026-126426

EUVD-2026-125017
OpenEMR 5.0.2 before 8.5.0 contains a missing authentication vulnerability in mfa_registrations.php and mfa_u2f.php that allows session hijackers to delete MFA factors or register U2F keys without password re-entry. Attackers holding a victim's authenticated session can remove all second factors or add their own U2F key, bypassing MFA at later logins with the password.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 38.8%
Common Weakness Enumeration
References
https://github.com/openemr/openemr/commit/e0dee295497bba763151913bde563a826c739cd7
https://github.com/openemr/openemr/security/advisories/GHSA-rcrp-xxch-gxfh
https://www.vulncheck.com/advisories/openemr-5.0.2-before-8.5.0-missing-re-authentication-for-mfa-factor-deletion-and-u2f-registration