ch4n3-yoon/CVE-2025-62727-Demo

PoC

Proof of concept of CVE-2025-62727 that can cause denial-of-service in FastAPI (based Starlette <= 0.48.0)

view exploit source poc_in_githubauthor ch4n3-yoonpublished 2025-10-28catalog poc_in_github

exploited CVEs (1)

Known CVEs related to this entry.

ID	severity	EPSS	exploitable	published
CVE-2025-62727US	—	0.80% (56th)	Exploit	2025-10-28
Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that tr…

scry

Working exploits like this target internet-facing systems. See what is exposed on your perimeter with a free passive scan.