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HTTP Request Smuggling Affecting io.netty:netty-codec-http package, versions [,4.1.42.Final)

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.63% (77th percentile)
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NVD
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-JAVA-IONETTY-469234
  • published 26 Sep 2019
  • disclosed 26 Sep 2019
  • credit axeBig
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Introduced: 26 Sep 2019

CVE-2019-16869 Open this link in a new tab
CWE-113 Open this link in a new tab

How to fix?

Upgrade io.netty:netty-codec-http to version 4.1.42.Final or higher.

Overview

io.netty:netty-codec-http is a network application framework for rapid development of maintainable high performance protocol servers & clients.

Affected versions of this package are vulnerable to HTTP Request Smuggling. Netty mishandles whitespace before the colon in HTTP headers such as a Transfer-Encoding : chunked line. This can lead to HTTP request smuggling where an attacker can bypass security controls, gain unauthorized access to sensitive data, and directly compromise other application users.