CVE-2026-110725— fast-uri 路径注入漏洞
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、遵循 RFC 3986 标准的 Node.js URI 解析与序列化库。在 2.4.8 之前的版本、3.0.0 至 3.1.8 的版本，以及 4.0.0 至 4.2.2 的版本中，当调用 serialize()、normalize() 或 resolve() 方法，并将非默认选项 reference 设置为 suffix，且处理的是一个不包含权威部分（authority）的引用时，生成的相对引用可能在其路径段的首部包含未转义的裸冒号（:）。然而，RFC 3986 明确禁止此类情况，
可能的 ATT&CK 技术 3 AI
T1059.007 · JavaScript T1566 · Phishing T1190 · Exploit Public-Facing Application
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一、 漏洞 CVE-2026-110725 基础信息
漏洞信息
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Vulnerability Title
fast-uri vulnerable to scheme injection via an unescaped first-segment colon in suffix references
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 before 2.4.8, from 3.0.0 through 3.1.8, and from 4.0.0 through 4.2.2, when serialize(), normalize(), or resolve() are called with the non-default option reference set to suffix on a reference that has no authority, the emitted relative reference can contain a bare colon in its first path segment without escaping it, even though RFC 3986 forbids that because it makes the string reparse as an absolute URI with a scheme. An application that serializes or normalizes a relative reference with the suffix option and then treats the result as a URI can turn inert input into a live javascript, data, or vbscript URL, a cross-site scripting vector, and the equal() comparison can conflate a scheme-bearing reference with a relative one. Exposure is limited to applications using the non-default suffix reference option. 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, avoid the suffix reference option on untrusted input, or percent-encode a colon in the first path segment of the result before treating it as a URI.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对路径等价的解析不恰当
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-110725 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
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CVE-2026-110725 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-2026-110180 | 4.8 MEDIUM | fast-uri 未校验 WHATWG 主机规范化导致主机混淆漏洞 |
| CVE-2026-110095 | 3.7 LOW | fast-uri 相对路径归一化路径等价性漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-110725
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