CVE-2026-110863
CVE-2026-110863 · Better Auth @better-auth/sso before 1.7.3 Authentication Bypass via Personal SSO Providers
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Better Auth @better-auth/sso from 1.7.0-rc.2 before 1.7.3 contains an authentication bypass vulnerability that allows authenticated users to sign in as other users by registering a personal SSO provider. Attackers can copy a legitimate provider's OIDC issuer or SAML entity ID and assert a victim's subject or NameID, because account lookup ignores providerId, creating sessions for victim accounts.
CVSS 8.6 · Alta · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Productos y versiones afectados
sso
- Versiones
- ≥ 1.7.0-rc.2, < 1.7.3: Afectada (semver)
Actualiza a 1.7.3