NextAuth.js before 4.10.3 and 3.29.10 sending verification requests (magic link) to unwanted emails

Impact next-auth users who are using the EmailProvider either in versions before 4.10.3 or 3.29.10 are affected. If an attacker could forge a request that sent a comma-separated list of emails eg.: [email protected],[email protected] to the sign-in endpoint, NextAuth.js would send emails to...