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
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