A race condition in go-resty can result in HTTP request body disclosure across requests.
This condition can be triggered by calling sync.Pool.Put with the same *bytes.Buffer more than once, when request retries are enabled and a retry occurs. The call to sync.Pool.Get will then return a bytes.Buffer that hasn't had bytes.Buffer.Reset called on it. This dirty buffer will contain the HTTP request body from an unrelated request, and go-resty will append the current HTTP request body to it, sending two bodies in one request.
The sync.Pool in question is defined at package level scope, so a completely unrelated server could receive the request body.
{
"github_reviewed": true,
"severity": "MODERATE",
"cwe_ids": [
"CWE-200",
"CWE-362"
],
"nvd_published_at": "2023-11-28T17:15:08Z",
"github_reviewed_at": "2023-11-28T17:36:21Z"
}