CVE-2023-39326

A malicious HTTP sender can use chunk extensions to cause a receiver
reading from a request or response body to read many more bytes from the
network than are in the body. A malicious HTTP client can further exploit
this to cause a server to automatically read a large amount of data (up to
about 1GiB) when a handler fails to read the entire body of a request.
Chunk extensions are a little-used HTTP feature which permit including
additional metadata in a request or response body sent using the chunked
encoding. The net/http chunked encoding reader discards this metadata. A
sender can exploit this by inserting a large metadata segment with each
byte transferred. The chunk reader now produces an error if the ratio of
real body to encoded bytes grows too small.