CVE-2020-5207

In Ktor before 1.3.0, request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle \n as a headers separator...

CVE-2020-5207

In Ktor before 1.3.0, request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle \n as a headers separator...

Request smuggling is possible when both chunked TE and content length specified

Impact Request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle alone \n as a headers separator. Patches https://github.com/ktorio/ktor/pull/1547 Workarounds None except migrating to a better proxy. References...