Laravel is a web application framework. Prior to versions 12.60.0 and 13.10.0, a CRLF injection vulnerability in Laravel's email validation, in combination with how Symfony Mailer and Symfony Mime handle certain character sequences, may allow an unauthenticated attacker to interfere with outbound email processing in applications that send mail to user-supplied addresses. This issue has been patched in versions 12.60.0 and 13.10.0.
https://github.com/derrickschoen/laravel-framework
https://github.com/laravel/framework/security/advisories/GHSA-5vg9-5847-vvmq
https://github.com/laravel/framework/releases/tag/v13.10.0
https://github.com/laravel/framework/releases/tag/v12.60.0
https://github.com/laravel/framework/pull/60151
https://github.com/laravel/framework/commit/f336ba79e744257f84ebf0d096b0ebc62e8e1a4d
https://github.com/laravel/framework/commit/96e9a663db657cf37ef26cd794fda8ff60eaa451