Security Advisory

CVE-2026-25480

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-02-09 18:49:34
Last updated 2026-02-10 16:01:06
Assigner GitHub_M
State PUBLISHED

Description

Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to 2.20.0, FileStore maps cache keys to filenames using Unicode NFKD normalization and ord() substitution without separators, creating key collisions. When FileStore is used as response-cache backend, an unauthenticated remote attacker can trigger cache key collisions via crafted paths, causing one URL to serve cached responses of another (cache poisoning/mixup). This vulnerability is fixed in 2.20.0.