Duplicate Advisory: Pingora Request Smuggling and Cache Poisoning
Duplicate AdvisoryThis advisory has been withdrawn because it is a duplicate of GHSA-93c7-7xqw-w357. This link is maintained to preserve external references.Original DescriptionPingora versions prior to 0.5.0 which used the caching functionality in pingora-proxy did not properly drain the downstream request body on cache hits.This allows an attacker to craft malicious HTTP/1.1 requests which could lead to request smuggling or cache poisoning.This flaw was corrected in commit fda3317ec822678564d641e7cf1c9b77ee3759ff by ensuring that the downstream request body is always drained before a connection can be reused.See [the blog post](https://blog.cloudflare.com/resolving-a-request-smuggling-vulnerability-in-pingora/) for more information.