CVE-2026-25480
CVE-2026-25480 · FileStore key canonicalization collisions allow response cache mixup/poisoning (ASCII ord + Unicode NFKD)
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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.
CVSS 6.5 · Moyenne · EPSS 0,5% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: python
Produits et versions concernés
litestar
- Versions du logiciel
- < 2.20.0: Concernée
Aucun correctif publié
litestar PyPI
- Versions du logiciel
- 2.19.0
- Plages de versions concernées
- ECOSYSTEM: ≥ 2.19.0, < 2.20.0
Mettez à jour vers 2.20.0
litestar PyPI
- Versions du logiciel
- 1.0.0a0
- 2.0.0
- 2.0.0a3
- 2.0.0a4
- 2.0.0a5
- 2.0.0a6
- 2.0.0a7
- 2.0.0b1
- 2.0.0b2
- 2.0.0b3
- 2.0.0b4
- 2.0.0rc1
- 2.0.1
- 2.1.0
- 2.1.1
- 2.10.0
- 2.11.0
- 2.12.0
- 2.12.1
- 2.13.0
- 2.14.0
- 2.15.0
- 2.15.1
- 2.15.2
- 2.16.0
- 2.17.0
- 2.18.0
- 2.19.0
- 2.2.0
- 2.2.1
- 2.3.0
- 2.3.1
- 2.3.2
- 2.4.0
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.5
- 2.5.0
- 2.5.1
- 2.5.2
- 2.5.3
- 2.5.4
- 2.5.5
- 2.6.0
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.7.0
- 2.7.1
- 2.7.2
- 2.8.0
- 2.8.1
- 2.8.2
- 2.8.3
- 2.9.0
- 2.9.1
- Plages de versions concernées
- ECOSYSTEM: < 2.20.0
Mettez à jour vers 2.20.0
Sources originales
- https://github.com/litestar-org/litestar/security/advisories/GHSA-vxqx-rh46-q2pg
- https://github.com/litestar-org/litestar/commit/85db6183a76f8a6b3fd6ee3c88d860b9f37a2cca
- https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0
- https://github.com/litestar-org/litestar/releases/tag/v2.20.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-25480