{"id":"EUVD-2026-108256","revision":"8c3c46cdbcc549a8ba4de09c7f8b3a0f","records":[{"revision":"8c3c46cdbcc549a8ba4de09c7f8b3a0f","observedAt":"2026-10-30T01:59:11.987+00:00","statement":{"source":"euvd","id":"EUVD-2026-108256","aliases":["CVE-2026-114607","GHSA-965c-763c-88jm"],"title":"Better Auth is an authentication and authorization library for TypeScript. From 1.4.0-beta.18 until 1.7.7, deployments that enable Magic Link with storeToken set to plain, or with storeToken set to hashed and the global verification.storeId…","description":"Better Auth is an authentication and authorization library for TypeScript. From 1.4.0-beta.18 until 1.7.7, deployments that enable Magic Link with storeToken set to plain, or with storeToken set to hashed and the global verification.storeIdentifier setting also set to hashed, enable a built-in social or Generic OAuth provider, and use account.storeStateStrategy set to database can accept an OAuth sign-in state value as a Magic Link token. These settings can cause Magic Link verification records and OAuth state to resolve to the same stored identifier, allowing an unauthenticated attacker to start OAuth sign-in for a known email address and redeem the returned state through Magic Link without controlling the mailbox or completing the provider callback. The attacker can obtain a normal session for an existing user, or create an account incorrectly marked as email verified when sign-up is enabled. This issue is fixed in version 1.7.7.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1,"severity":null}],"references":["https://github.com/better-auth/better-auth/security/advisories/GHSA-965c-763c-88jm","https://github.com/better-auth/better-auth/pull/11494","https://github.com/better-auth/better-auth/commit/ac54bfd67821a7607533af2059858b12bc54e26a","https://github.com/better-auth/better-auth/releases/tag/v1.7.7"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-108256","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 22, 2026, 4:47:27 PM","dateUpdated":"Oct 23, 2026, 3:02:40 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-108256","identifiers":["EUVD-2026-108256","CVE-2026-114607","GHSA-965c-763c-88jm"]},"retained":false,"historicalAffected":[]}],"coverage":[]}