HTTP Request Smuggling Affecting io.netty:netty-codec-http2 Open this link in a new tab package, versions [,4.1.60.Final)


0.0
medium
  • Exploit Maturity

    Mature

  • Attack Complexity

    High

  • Integrity

    High

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • snyk-id

    SNYK-JAVA-IONETTY-1083991

  • published

    10 Mar 2021

  • disclosed

    10 Mar 2021

  • credit

    Unknown

How to fix?

Upgrade io.netty:netty-codec-http2 to version 4.1.60.Final or higher.

Overview

io.netty:netty-codec-http2 is a HTTP2 sub package for the netty library, an event-driven asynchronous network application framework.

Affected versions of this package are vulnerable to HTTP Request Smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by Http2MultiplexHandler as it is propagated up.

An additional case of this vulnerability was fixed in 4.1.61.Final (CVE-2021-21409).