CVE-2023-23936

Description

Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize the `headers.host` string before passing to undici.

How to fix CVE-2023-23936

To remediate CVE-2023-23936, upgrade the affected package to a fixed version below.

• —upgrade to 16.19.1-r0 or later
• —upgrade to 16.19.1 or later
• —upgrade to 16.19.1 or later
• —upgrade to 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1 or later
• —upgrade to 5.19.1 or later

Is CVE-2023-23936 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (5)

• from 0, < 16.19.1-r0
• >= 16.0.0, < 16.19.1, >= 18.0.0, < 18.14.1, >= 19.0.0, < 19.6.1
• >= 16.0.0, < 16.19.1, >= 18.0.0, < 18.14.1, >= 19.0.0, < 19.6.1
• from 0, < 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1
• >= 2.0.0, < 5.19.1

CVSS scores

References (8)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-23936
• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2023-23936
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2023-23936
• PATCHgithub.com/nodejs/undici
• WEB