Is CVE-2026-48710 actively exploited?

No active exploitation of CVE-2026-48710 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-48710 be exploited remotely?

Yes. CVE-2026-48710 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-48710?

CVE-2026-48710 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-48710

CWE-444Published: May 26, 2026· Updated: May 29, 2026

6.5

CVSS v3.1

Official 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 Source

Technical Analysis

CVE-2026-48710 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.