GHSA-XX3C-QF5G-HC39 Symfony has an Argument Injection in SendmailTransport via Dash-Prefixed Recipient Address

Description Symfony Mailer selects a transport via the MAILERDSN environment variable / configuration e.g. smtp://..., sendmail://..., native://default. SendmailTransport invokes the local sendmail binary and supports two modes: -bs speak SMTP over stdin: the default and -t read the message on...