title: Request splitting via HTTP/2 method injection and mod_proxy
description: A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
problem types: Request Splitting
affected:
{
vendor: Apache Software Foundation
product: Apache HTTP Server
versions:
version: Apache HTTP Server 2.4 2.4.17 to 2.4.48, status: affected
}
metrics:
other: [
type: unknown
content: {'other': 'moderate'}
]