CVE-2026-72860— 9router 服务器端请求伪造漏洞
一分钟漏洞结论
影响对象
decolua 9router
利用判断
存在公开或 AI PoC，应优先验证
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。
以下是该漏洞描述信息的中文翻译： 在 9router 中， 路由接受用户提供的 ，并向其发起服务器端 HTTP 请求。该请求目标地址由 中的 函数进行防护。然而，该防护机制仅比对主机名字符串：它不执行 DNS 解析，不在重定向后重新验证，且其处理 IPv4 映射 IPv6 地址的逻辑分支实际上无法被命中。 该分支的正则表达式为 ，但 WHATWG URL 解析器在防护机制运行之前，会将此类字面量标准化为十六进制块（hextets）。因此，调用 会返回 ，而正则表达式实际测试的对象是一个它从未接收到过的字符串。这导致
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一、 漏洞 CVE-2026-72860 基础信息
漏洞信息
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Vulnerability Title
9router Server-Side Request Forgery via /api/provider-nodes/validate Because the IPv4-Mapped IPv6 Denylist Check Is Unreachable
来源: CVE Program / CVE List V5
Vulnerability Description
The POST /api/provider-nodes/validate route in 9router takes a caller-supplied baseUrl and issues server-side HTTP requests to it, guarding the destination with assertPublicUrl from src/shared/utils/ssrfGuard.js. That guard compares hostname strings only: it resolves no DNS, does not revalidate after a redirect, and its IPv4-mapped IPv6 branch is unreachable. The branch matches ^::ffff:(\d+\.\d+\.\d+\.\d+)$, but the WHATWG URL parser canonicalizes such literals to hextets before the guard runs, so new URL("http://[::ffff:127.0.0.1]/").hostname yields [::ffff:7f00:1] and the pattern is tested against a string it is never handed. Every IPv4-mapped address therefore passes, and http://[::ffff:7f00:1] and http://[::ffff:a9fe:a9fe] reach loopback and link-local metadata addresses; a hostname whose A record points at an internal address passes as well because no resolution occurs. In the custom-embedding branch the upstream response body is truncated to 200 bytes and returned to the caller whenever the upstream status is neither 2xx nor 401 nor 403, which discloses the beginning of internal responses, and the other validation types remain usable for blind internal port scanning through status and timing differences. The caller-supplied apiKey is forwarded to the internal destination as an Authorization Bearer header. A dashboard session is required by default, and none is required when requireLogin is disabled.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-72860 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
Qwen3.6-35B-A3B
· 6775 chars
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三、漏洞 CVE-2026-72860 的情报信息
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CVE-2026-72860 补丁与修复 (3)
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🔗 9router/src/shared/utils/ssrfGuard.js at master · decolua/9router · GitHub 查看完整文章 technical-description
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CVE-2026-72860 厂商安全公告 (1)
CVE-2026-72860 概念验证 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-72860
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