CWE
93 74
Advisory Published
CVE Published
Updated

CVE-2023-23936: CRLF Injection in Nodejs ‘undici’ via host

First published: Thu Feb 16 2023(Updated: )

A flaw was found in the fetch API in Node.js that did not prevent CRLF injection in the 'host' header. This issue could allow HTTP response splitting and HTTP header injection.

Credit: security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
redhat/nodejs<18-9020020230327152102.rhel9
18-9020020230327152102.rhel9
redhat/nodejs<1:16.19.1-1.el9_2
1:16.19.1-1.el9_2
redhat/nodejs<1:16.20.2-1.el9_0
1:16.20.2-1.el9_0
Nodejs Node.js>=16.0.0<16.19.1
Nodejs Node.js>=18.0.0<18.14.1
Nodejs Node.js>=19.0.0<19.6.1
Nodejs Undici>=2.0.0<5.19.1
IBM Cognos Dashboards on Cloud Pak for Data<=4.7.0

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-23936?

    CVE-2023-23936 is a vulnerability in the fetch API in Node.js that allows for CRLF injection in the host header.

  • What is the severity of CVE-2023-23936?

    CVE-2023-23936 has a severity rating of 6.5 out of 10.

  • How does CVE-2023-23936 affect Node.js?

    CVE-2023-23936 affects Node.js versions prior to 19.6.1, 18.14.1, and 16.19.1.

  • How can I fix CVE-2023-23936?

    To fix CVE-2023-23936, update Node.js to version 19.6.1, 18.14.1, or 16.19.1.

  • Are there any workarounds for CVE-2023-23936?

    As a workaround for CVE-2023-23936, sanitize the `headers.host` string before passing to the affected component.

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