{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.640"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "da18a16c84ae5c0b78cad79609cb0efb174000ec"
            }
          ],
          "repo": "https://github.com/webmin/webmin",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qpww-fff2-6fgv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42210.json"
  },
  "details": "Webmin is a web-based system administration tool for Unix-like servers. Prior to version 2.640, for Webmin accounts that require a second authentication factor (typically TOTP), an attacker with knowledge of the username and password can bypass the 2FA requirement by using Basic authentication. Webmin is a web-based system administration tool for Unix-like servers. As a workaround, apply the patch from commit da18a16c84ae5c0b78cad79609cb0efb174000ec manually.",
  "id": "CVE-2026-42210",
  "modified": "2026-07-22T05:29:52.305971717Z",
  "published": "2026-07-20T17:03:09.650Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42210.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/webmin/webmin/security/advisories/GHSA-qpww-fff2-6fgv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42210"
    },
    {
      "type": "FIX",
      "url": "https://github.com/webmin/webmin/commit/da18a16c84ae5c0b78cad79609cb0efb174000ec"
    }
  ],
  "schema_version": "1.8.0",
  "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": "Webmin 2FA requirement bypass"
}