CVE-2022-29361: Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HTTP request with multiple requests included inside the body. No useful information at URL, so not sure what to make of this.
See https://github.com/pallets/werkzeug/issues/2420, it seems to be some pseudo-security spam.