Advisory Weakness Curation

Denial of service due to unlimited number of parts ### Impact * The multipart body parser accepts an unlimited number of file parts. * The multipart body parser accepts an unlimited number of field parts. * The multipart body parser accepts an unlimited number of empty parts as field parts. ### Patches This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). ### Workarounds There are no known workaround. ### References Reported at https://hackerone.com/reports/1816195.

Denial of service due to unlimited number of parts @fastify/multipart is a Fastify plugin to parse the multipart content-type. Prior to versions 7.4.1 and 6.0.1, @fastify/multipart may experience denial of service due to a number of situations in which an unlimited number of parts are accepted. This includes the multipart body parser accepting an unlimited number of file parts, the multipart body parser accepting an unlimited number of field parts, and the multipart body parser accepting an unlimited number of empty parts as field parts. This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). There are no known workarounds.

Allocation of Resources Without Limits or Throttling @fastify/multipart is a Fastify plugin to parse the multipart content-type. Prior to versions 7.4.1 and 6.0.1, @fastify/multipart may experience denial of service due to a number of situations in which an unlimited number of parts are accepted. This includes the multipart body parser accepting an unlimited number of file parts, the multipart body parser accepting an unlimited number of field parts, and the multipart body parser accepting an unlimited number of empty parts as field parts. This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). There are no known workarounds.