{
  "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-2026-12064",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-12064",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-03T06:13:55.302Z",
    "updatedAt": "2026-09-15T06:02:44.283Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "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": "proto-default skips SSH verification",
      "summary": "When a user invokes curl using a schemeless URL combined with\n`--proto-default` sftp (or scp), a disconnect occurs between the tool layer\nand libcurl. The tool layer incorrectly infers the URL scheme, which\nerroneously bypasses the initialization of critical SSH security options like\nCURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 and CURLOPT_SSH_KNOWNHOSTS. Conversely, the\nlibcurl runtime successfully honors CURLOPT_DEFAULT_PROTOCOL and establishes\nthe connection via SFTP/SCP as specified. Because the tool layer skipped the\nsecurity configuration, these SSH host verification options are silently\nomitted, causing curl to connect to an unverified SSH remote host without\nthrowing an error.",
      "affected": [
        {
          "vendor": "curl",
          "product": "curl",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7.81.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "8.14.2"
            },
            {
              "version": "8.15.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "8.16.1"
            },
            {
              "version": "8.17.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "8.20.1"
            }
          ]
        },
        {
          "vendor": "curl",
          "product": "curl",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "18270893abdb19f0ca170c118f8a2847dbd304be",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ab3bb8cd8be8f9d4acb97da0418abc279182041e"
            }
          ]
        },
        {
          "vendor": "curl",
          "product": "curl",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8.20.0",
              "status": "affected"
            },
            {
              "version": "8.19.0",
              "status": "affected"
            },
            {
              "version": "8.18.0",
              "status": "affected"
            },
            {
              "version": "8.17.0",
              "status": "affected"
            },
            {
              "version": "8.16.0",
              "status": "affected"
            },
            {
              "version": "8.15.0",
              "status": "affected"
            },
            {
              "version": "8.14.1",
              "status": "affected"
            },
            {
              "version": "8.14.0",
              "status": "affected"
            },
            {
              "version": "8.13.0",
              "status": "affected"
            },
            {
              "version": "8.12.1",
              "status": "affected"
            },
            {
              "version": "8.12.0",
              "status": "affected"
            },
            {
              "version": "8.11.1",
              "status": "affected"
            },
            {
              "version": "8.11.0",
              "status": "affected"
            },
            {
              "version": "8.10.1",
              "status": "affected"
            },
            {
              "version": "8.10.0",
              "status": "affected"
            },
            {
              "version": "8.9.1",
              "status": "affected"
            },
            {
              "version": "8.9.0",
              "status": "affected"
            },
            {
              "version": "8.8.0",
              "status": "affected"
            },
            {
              "version": "8.7.1",
              "status": "affected"
            },
            {
              "version": "8.7.0",
              "status": "affected"
            },
            {
              "version": "8.6.0",
              "status": "affected"
            },
            {
              "version": "8.5.0",
              "status": "affected"
            },
            {
              "version": "8.4.0",
              "status": "affected"
            },
            {
              "version": "8.3.0",
              "status": "affected"
            },
            {
              "version": "8.2.1",
              "status": "affected"
            },
            {
              "version": "8.2.0",
              "status": "affected"
            },
            {
              "version": "8.1.2",
              "status": "affected"
            },
            {
              "version": "8.1.1",
              "status": "affected"
            },
            {
              "version": "8.1.0",
              "status": "affected"
            },
            {
              "version": "8.0.1",
              "status": "affected"
            },
            {
              "version": "8.0.0",
              "status": "affected"
            },
            {
              "version": "7.88.1",
              "status": "affected"
            },
            {
              "version": "7.88.0",
              "status": "affected"
            },
            {
              "version": "7.87.0",
              "status": "affected"
            },
            {
              "version": "7.86.0",
              "status": "affected"
            },
            {
              "version": "7.85.0",
              "status": "affected"
            },
            {
              "version": "7.84.0",
              "status": "affected"
            },
            {
              "version": "7.83.1",
              "status": "affected"
            },
            {
              "version": "7.83.0",
              "status": "affected"
            },
            {
              "version": "7.82.0",
              "status": "affected"
            },
            {
              "version": "7.81.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}