{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.1.3"
              },
              {
                "fixed": "1.6.22"
              },
              {
                "introduced": "1.7.0-beta.0"
              },
              {
                "fixed": "1.7.0-beta.10"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "73c98e50b90b0aa2b1320e52bcd216a1e410e62b"
            },
            {
              "fixed": "a90d061de7cdbd60e796230aadf5d1082add1fe2"
            },
            {
              "introduced": "c8cf0f7c1a26ac70504a76f47d736c56cb029320"
            },
            {
              "fixed": "ba52913eed6e7210808511752bf546981f6980f5"
            }
          ],
          "repo": "https://github.com/better-auth/better-auth",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qq9h-g4jm-xgf3"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67327.json"
  },
  "details": "better-auth versions \u003e= 1.1.3 and \u003c 1.6.22 (and pre-release versions \u003e= 1.7.0-beta.0 and \u003c 1.7.0-beta.10) are vulnerable to account takeover via pre-account hijacking on magic-link and email-OTP sign-in when open email/password registration is enabled. An attacker registers an account with the victim's email address and an attacker-chosen password; the account remains unverified. When the legitimate owner later signs in via the magic-link or email-OTP passwordless flow, the account is marked verified without removing the pre-existing password or revoking existing sessions, so the attacker's password remains valid, granting persistent access to the victim's account. Fixed in 1.6.22 and 1.7.0-beta.10.",
  "id": "CVE-2026-67327",
  "modified": "2026-08-04T03:32:46.349195674Z",
  "published": "2026-08-01T12:22:17.753Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67327.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/better-auth/better-auth/security/advisories/GHSA-qq9h-g4jm-xgf3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67327"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/better-auth-before-account-takeover-via-magic-link-email-otp"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "better-auth before 1.6.22 Account Takeover via Magic-Link Email-OTP"
}