How to crash an email server with a single email | SnykFive of the most popular email parsers for Node.js have recently been found to be susceptible to a trivial denial of service (DoS) vulnerability. The vulnerability can be exploited by packing a few million empty attachments in a email that will bypass typical email size limits (usually 20 MB or less). When the email is sent to a vulnerable email server, it will freeze the Node.js event loop for se
