CVE-2026-25480

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-176

Affected software

No affected versions have been published.

Timeline

Published
Feb 9, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-25480: Medium severity, CVSS 6.5 | Vulnix