{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67327","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-07-29T13:07:21.184Z","datePublished":"2026-08-01T12:22:17.753Z","dateUpdated":"2026-08-03T18:29:37.617Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-08-01T12:22:17.753Z"},"datePublic":"2026-06-26T00:00:00.000Z","title":"better-auth before 1.6.22 Account Takeover via Magic-Link Email-OTP","descriptions":[{"lang":"en","value":"better-auth versions >= 1.1.3 and < 1.6.22 (and pre-release versions >= 1.7.0-beta.0 and < 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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Authentication","cweId":"CWE-287","type":"CWE"}]}],"affected":[{"vendor":"better-auth","product":"better-auth","defaultStatus":"unaffected","packageURL":"pkg:npm/better-auth","versions":[{"version":"1.1.3","status":"affected","versionType":"semver","lessThan":"1.6.22"},{"version":"1.6.22","status":"unaffected","versionType":"semver"}]},{"vendor":"better-auth","product":"better-auth","defaultStatus":"unaffected","packageURL":"pkg:npm/better-auth","versions":[{"version":"1.7.0-beta.0","status":"affected","versionType":"semver","lessThan":"1.7.0-beta.10"},{"version":"1.7.0-beta.10","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:better-auth:better-auth\\/oauth-provider:*:*:*:*:*:node.js:*:*","versionStartIncluding":"1.1.3","versionEndExcluding":"1.6.22"},{"vulnerable":true,"criteria":"cpe:2.3:a:better-auth:better-auth\\/oauth-provider:*:*:*:*:*:node.js:*:*","versionStartIncluding":"1.7.0","versionEndExcluding":"1.7.0"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"LOW","baseScore":8.3,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/better-auth/better-auth/security/advisories/GHSA-qq9h-g4jm-xgf3","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-qq9h-g4jm-xgf3)"},{"name":"VulnCheck Advisory: better-auth before 1.6.22 Account Takeover via Magic-Link Email-OTP","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/better-auth-before-account-takeover-via-magic-link-email-otp"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T18:29:18.479392Z","id":"CVE-2026-67327","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-03T18:29:37.617Z"}}]}}