{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2025-66614",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-66614",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2026-02-17T18:48:30.577Z",
    "updatedAt": "2026-03-24T09:46:33.159Z",
    "importedAt": "2026-10-24T01:57:44.935Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Apache Tomcat: Client certificate verification bypass due to virtual host mapping",
      "summary": "Improper Input Validation vulnerability.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0-M1 through 9.0.112.\n\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.0 through 8.5.100. Older EOL versions are not affected.\nTomcat did not validate that the host name provided via the SNI \nextension was the same as the host name provided in the HTTP host header \nfield. If Tomcat was configured with more than one virtual host and the \nTLS configuration for one of those hosts did not require client \ncertificate authentication but another one did, it was possible for a \nclient to bypass the client certificate authentication by sending \ndifferent host names in the SNI extension and the HTTP host header field.\n\n\n\nThe vulnerability only applies if client certificate authentication is \nonly enforced at the Connector. It does not apply if client certificate \nauthentication is enforced at the web application.\n\n\nUsers are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fix the issue.",
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Tomcat",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "11.0.0-M1",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "11.0.14"
            },
            {
              "version": "10.1.0-M1",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "10.1.49"
            },
            {
              "version": "9.0.0-M1",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "9.0.112"
            },
            {
              "version": "8.5.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "8.5.100"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "8.5.0"
            }
          ]
        }
      ]
    }
  }
}