CVE-2026-48710— Starlette 环境问题漏洞

Starlette has missing Host header validation that poisons request.url.path, bypassing path-based security checks

Starlette is a lightweight ASGI framework/toolkit. Prior to version 1.0.1, the HTTP `Host` request header was not validated before being used to reconstruct `request.url`. Because the routing algorithm relies on the raw HTTP path while `request.url` is rebuilt from the `Host` header, a malformed header could make `request.url.path` differ from the path that was actually requested. Middleware and endpoints that apply security restrictions based on `request.url` (rather than the raw `scope` path) could therefore be bypassed. Users should upgrade to a version greater than or equal to version 1.0.1, which validates the `Host` header against the grammar of RFC 9112 §3.2 / RFC 3986 §3.2.2 when constructing `request.url` and falls back to `scope["server"]` for malformed values.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

HTTP请求的解释不一致性(HTTP请求私运)

Starlette 环境问题漏洞

Starlette是Encode开源的一个轻量级的 ASGI 框架/工具包。非常适合用 Python 构建异步 web 服务。 Starlette 1.0.1之前版本存在环境问题漏洞，该漏洞源于未验证HTTP Host请求头，导致基于request.url的安全限制可能被绕过。

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