An issue was discovered in webargs before 5.1.3, as used with marshmallow and other products. JSON parsing uses a short-lived cache to store the parsed JSON body. This cache is not thread-safe, meaning that incorrect JSON payloads could have been parsed for concurrent requests.
{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "5.1.3"
}
],
"cpe": "cpe:2.3:a:webargs_project:webargs:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE"
}