MEDIUM✓ PATCH🇬🇧 English

CVE-2026-48710

CVSS 6.5v3.1pub. 2026-05-26upd. 2026-07-02

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.

oryginał EN
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  • Encode Starlette

    APP
    Encode
    0.8.3 – 1.0.1 (bez)
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PATCH DOSTĘPNY
Aktualizacja od producenta gotowa. Wdrożenie w ramach standardowego cyklu.
CWE
Referencje

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