An issue was discovered in Varnish Cache 7.x before 7.1.2 and 7.2.x before 7.2.1. A request smuggling attack can be performed on Varnish Cache servers by requesting that certain headers are made hop-by-hop, preventing the Varnish Cache servers from forwarding critical headers to the backend.
{ "cpes": [ "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*", "cpe:2.3:a:varnish_cache_project:varnish_cache:7.2.0:*:*:*:*:*:*:*" ], "severity": "High" }