Heimdall: Case-sensitive host matching may lead to policy bypass

Summary Heimdall performs host matching in a case-sensitive manner, while HTTP hostnames are case-insensitive. This discrepancy can result in heimdall failing to match a rule for a request host that differs only in letter casing, potentially causing the request to be classified differently than...

Interpretation Conflict

Overview Affected versions of this package are vulnerable to Interpretation Conflict due to case-sensitive handling of the host matching process. An attacker can bypass access control policies by sending requests with hostnames that differ only in letter casing, potentially gaining unauthorized...

h3 v1 has Request Smuggling (TE.TE) issue

I was digging into h3 v1 specifically v1.15.4 and found a critical HTTP Request Smuggling vulnerability. Basically, readRawBody is doing a strict case-sensitive check for the Transfer-Encoding header. It explicitly looks for "chunked", but per the RFC, this header should be case-insensitive. The...