CVE-2026-110180— fast-uri 未校验 WHATWG 主机规范化导致主机混淆漏洞
一分钟漏洞结论
影响对象
fast-uri fast-uri
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
fast-uri 是一个无依赖的 Node.js 库，用于解析和序列化符合 RFC 3986 标准的 URI。在 2.4.2 至 2.4.7、3.1.3 至 3.1.8 以及 4.0.1 至 4.2.2 版本中，针对 HTTP 系列协议， 函数将解析后的主机名传递给 WHATWG URL 解析器，并直接采用其返回的主机名，但未验证该解析器是否将整个输入内容完全解析为主机名。这导致权威部分（authority）可能被静默重写：@ 符号之前的数据会被丢弃，制表符、回车符和换行符会被移除，且不会报告任何错误。 若应用程序
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一、 漏洞 CVE-2026-110180 基础信息
漏洞信息
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Vulnerability Title
fast-uri vulnerable to host confusion via unchecked WHATWG host canonicalization
来源: CVE Program / CVE List V5
Vulnerability Description
fast-uri is a dependency-free RFC 3986 URI parser and serializer for Node.js. In versions from 2.4.2 through 2.4.7, from 3.1.3 through 3.1.8, and from 4.0.1 through 4.2.2, for HTTP-family schemes the canonicalizeHost() function passes the parsed host to the WHATWG URL parser and adopts its hostname without checking that the parser consumed the entire input as a host, so the authority can be silently rewritten: data before an at-sign is dropped and tab, carriage-return, and line-feed characters are stripped, with no error reported. An application that enforces host-based policy such as denylists, loopback filtering, redirect validation, or outbound proxy routing on one representation can then see the canonical host diverge from what it checked, allowing traffic to be steered to an unintended destination. The issue is fixed in fast-uri 2.4.8, 3.1.9, and 4.2.3, and users should upgrade to one of these versions or later. As a workaround, reject an authority that contains more than one at-sign or any tab, carriage-return, or line-feed before calling fast-uri, or treat any non-empty parse error as fatal and compare hosts only from the same parse result.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-110180 的公开POC
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CVE-2026-110180 其他参考 (1)
同批安全公告 · fast-uri · 2026-10-20 · 共 4 条
| CVE-2026-110306 | 6.1 MEDIUM | fast-uri 远程代码执行漏洞 |
| CVE-2026-110095 | 3.7 LOW | fast-uri 相对路径归一化路径等价性漏洞 |
| CVE-2026-110725 | 3.7 LOW | fast-uri 路径注入漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-110180
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