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CVE-2025-62727 Starlette is a lightweight ASGI framework/toolkit
Description
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 triggers quadratic-time processing in Starlette's FileResponse Range parsing/merging logic. This enables CPU exhaustion per request, causing denial‑of‑service for endpoints serving files (e.g., StaticFiles or any use of FileResponse). This vulnerability is fixed in 0.49.1.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| starlette 0.39 | 0.39.0 → < 0.49.1 | 0.49.1 |
Références
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Chronologie
- Publiée
- Dernière modification
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