Description
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.
Remediation
References
https://github.com/ktorio/ktor/pull/1547
https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433v
Related Vulnerabilities
CVE-2016-10554 Vulnerability in npm package sequelize
CVE-2020-28276 Vulnerability in npm package deep-set
CVE-2023-4043 Vulnerability in maven package org.eclipse.parsson:project
CVE-2021-21294 Vulnerability in maven package org.http4s:http4s-blaze-server_2.12
CVE-2020-36181 Vulnerability in maven package com.fasterxml.jackson.core:jackson-databind