CVE-2026-54282

A flaw was found in Starlette, a lightweight Asynchronous Server Gateway Interface ASGI framework. Prior to version 1.3.0, the HTTP request path was not properly validated when reconstructing the request.url. A remote attacker could craft a malicious HTTP request path that does not begin with a...

GHSA-JP82-JPQV-5VV3 Starlette: Unvalidated request path concatenated into authority poisons request.url.hostname

Summary In affected versions, the HTTP request path is not validated before being used to reconstruct request.url. Because request.url is rebuilt by concatenating scheme://hostpath and re-parsing the result, a path that does not begin with / for example @google.com moves the authority boundary...