{"id":"CVE-2026-126426","summary":"OpenEMR 5.0.2 before 8.5.0 Missing Re-Authentication for MFA Factor Deletion and U2F Registration","details":"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.","aliases":["GHSA-rcrp-xxch-gxfh"],"modified":"2026-11-14T02:47:28.730153434Z","published":"2026-11-13T09:35:29.713Z","database_specific":{"cwe_ids":["CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126426.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126426.json"},{"type":"FIX","url":"https://github.com/openemr/openemr/commit/e0dee295497bba763151913bde563a826c739cd7"},{"type":"ADVISORY","url":"https://github.com/openemr/openemr/security/advisories/GHSA-rcrp-xxch-gxfh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126426"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openemr-5.0.2-before-8.5.0-missing-re-authentication-for-mfa-factor-deletion-and-u2f-registration"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openemr/openemr","events":[{"introduced":"35a67d11567419866d8aa9de0ae355676eeebede"},{"fixed":"c1b2b8bcbe91aa81858f7ba8b25c31d9a82639a5"},{"fixed":"e0dee295497bba763151913bde563a826c739cd7"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"5.0.2"},{"fixed":"8.5.0"}]},{"range":[{"fixed":"e0dee295497bba763151913bde563a826c739cd7"}],"source":"REFERENCES_COMMIT"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126426.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}