{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "5.0.2"
                  },
                  {
                    "fixed": "8.5.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "range": [
                  {
                    "fixed": "e0dee295497bba763151913bde563a826c739cd7"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "35a67d11567419866d8aa9de0ae355676eeebede"
            },
            {
              "fixed": "c1b2b8bcbe91aa81858f7ba8b25c31d9a82639a5"
            },
            {
              "fixed": "e0dee295497bba763151913bde563a826c739cd7"
            }
          ],
          "repo": "https://github.com/openemr/openemr",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-rcrp-xxch-gxfh"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126426.json"
  },
  "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.",
  "id": "CVE-2026-126426",
  "modified": "2026-11-14T02:30:41.745885061Z",
  "published": "2026-11-13T09:35:29.713Z",
  "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"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenEMR 5.0.2 before 8.5.0 Missing Re-Authentication for MFA Factor Deletion and U2F Registration"
}