Descripción
better-auth versions before 1.6.2 fail to validate the OAuth state parameter against the stored nonce when using cookie-backed state storage without PKCE. Attackers can forge the state parameter and supply an attacker-controlled authorization code to create authenticated sessions bound to the attacker-s external identity or persistently link attacker accounts to victim profiles.
CVSS 5.3EPSS 0.172%Riesgo 0.54
Ver fuente- Publicación
- 2026-08-01 13:17:04
- Versiones afectadas
- <1.6.2
- Tipo
- Aplicación web
- Última modificación
- 2026-08-03 17:16:41
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N