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CVE-2026-54282

Estado: AnalizadaMedia (5.3)—

Starlette is a lightweight ASGI framework/toolkit. Prior to 1.3.0, the HTTP request path is not validated before being used to reconstruct request.url. Because request.url is rebuilt by concatenating {scheme}://{host}{path} and re-parsing the result, a path that does not begin with / (for example @google.com) moves the authority boundary during re-parsing, so request.url.hostname and request.url.netloc become attacker-controlled. Code that reads request.url.hostname (rather than the Host header or scope) can therefore be misled into trusting an attacker-supplied host. This vulnerability is fixed in 1.3.0.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Encode — Starlette

CWE

Referencias

JSON original (NVD)

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  "cveTags": [],
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          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-06-22T17:26:39.551031Z"
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          "value": "CWE-706"
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  "lastModified": "2026-06-26T19:18:47.063",
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