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

February 16, 2023 (updated February 24, 2023)

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.

References

github.com/advisories/GHSA-5r9g-qh6m-jxff
github.com/nodejs/undici/commit/a2eff05401358f6595138df963837c24348f2034
github.com/nodejs/undici/releases/tag/v5.19.1
github.com/nodejs/undici/security/advisories/GHSA-5r9g-qh6m-jxff
hackerone.com/reports/1820955
nvd.nist.gov/vuln/detail/CVE-2023-23936

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