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CVE-2023-23936
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2023-02-16T18:15:10.877 · Last modified 2026-06-17T05:38:19.600

Summary

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.

Affected products

nodejs — node.js

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.