CVE-2026-48710

216.73.216.133

· Published 26/05/2026 22:16 · Modified 26/05/2026 22:16

Labels: CVE-2026-48710 2026-05-26 CVE-2026-48710 CWE-444 [email protected]

Essential information

Published: 26/05/2026 22:16
Modified: 26/05/2026 22:16
Author: —
Creator: —
CVSS: 6.5 MEDIUM (v3.1)
CISA KEV: No
CWE: —
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS metrics

Description

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.

NVD status

Status: Received — CVE has been recently published to the CVE List and has been received by the NVD.
Source: [email protected]
NVD: View on NVD

Affected products (CPE)

Product	CPE
encode / starlette	`cpe:2.3:a:encode:starlette:1.0.1:::::::*`