{
  "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-2026-80192",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80192",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-25T23:19:00.371Z",
    "updatedAt": "2026-10-08T15:25:17.120Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "better-auth SSO before 1.6.27 Domain Ownership Authentication Bypass",
      "summary": "@better-auth/sso before 1.6.27 (and before 1.4.8 in the 1.4.x line and before 1.7.0-rc.5 in the 1.7 prerelease line) contains two domain-ownership flaws. When domain verification is disabled, automatic organization assignment accepts unverified provider domains, allowing an authenticated organization owner/administrator to register an SSO provider for an arbitrary domain and have users with matching email domains added to the attacker's organization with default member permissions. When domain verification is enabled, a race condition between the verify-domain and update-provider endpoints can apply completed DNS proof to a different domain; combined with implicit account linking, this can link an attacker-controlled identity provider to an existing user account. Exploitation requires the SSO plugin (and, for the org-assignment path, the organization plugin) with the relevant configuration enabled.",
      "affected": [
        {
          "vendor": "better-auth",
          "product": "sso",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.4.8-beta.1",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.4.8"
            },
            {
              "version": "1.4.8",
              "status": "unaffected",
              "versionType": "semver"
            }
          ]
        },
        {
          "vendor": "better-auth",
          "product": "sso",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.4.9",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.6.27"
            },
            {
              "version": "1.6.27",
              "status": "unaffected",
              "versionType": "semver"
            }
          ]
        },
        {
          "vendor": "better-auth",
          "product": "sso",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.7.0-beta.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "1.7.0-rc.5"
            },
            {
              "version": "1.7.0-rc.5",
              "status": "unaffected",
              "versionType": "semver"
            }
          ]
        }
      ]
    }
  }
}