CRLF Injection in Nodejs ‘undici’ via host

中 5.4CVE-2023-23936 · BIT-node-2023-23936 · BIT-node-min-2023-23936 · 16/02/2023 公開 · 17/06/2026 更新

要点

CVE-2023-23936 は node.js (nodejs), undici (nodejs), undici に影響する深刻度「中」 (CVSS 5.4) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.1%（全脆弱性の 66.4% より高い）。
対処：16.19.1, 18.14.1, 19.6.1, 5.19.1 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
node.js nodejs	`≥ 16.0.0, < 16.19.1≥ 18.0.0, < 18.14.1≥ 19.0.0, < 19.6.1`	`16.19.118.14.119.6.1`
undici nodejs	`≥ 2.0.0, < 5.19.1`	`5.19.1`
undici npm	`≥ 2.0.0, < 5.19.1`	`5.19.1`

概要

Impact

undici library does not protect host HTTP header from CRLF injection vulnerabilities.

Patches

This issue was patched in Undici v5.19.1.

Workarounds

Sanitize the headers.host string before passing to undici.

References

Reported at https://hackerone.com/reports/1820955.

Credits

Thank you to Zhipeng Zhang (@timon8) for reporting this vulnerability.

NVD の説明

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.