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CVE-2026-53516

CVE-2026-53516 · Better Auth: Account takeover via OAuth auto-link to unverified pre-registered email

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, Better Auth's OAuth callback auto-link gate in handleOAuthUserInfo accepts implicit account linking when the OAuth provider asserts email_verified: true without requiring the local user row's emailVerified field to also be true, allowing an attacker who pre-registers a victim email through /sign-up/email to bind the victim's OAuth identity to the attacker's account. The same primitive affects one-tap, and emailAndPassword.requireEmailVerification: true does not mitigate the link-time verification change. This issue is fixed in version 1.6.11.

CVSS 8.3 · Alta · EPSS 0,3% · Corrección disponible

Publicación
Actualización

Pila tecnológica: node

Productos y versiones afectados

  • better-auth

    Versiones
    • < 1.6.11: Afectada

    Sin corrección publicada

  • better-auth npm

    Intervalos de versiones afectados
    • SEMVER: < 1.6.11

    Actualiza a 1.6.11

Fuentes originales

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