CVE-2026-25480

MEDIUM EPSS 32.9%
Published Feb 9, 20264mo ago · Modified Feb 17, 20264mo ago
6.5 CVSS 3.1
Medium
Find Similar
Published Feb 9, 2026 4mo ago
Last Modified Feb 17, 2026 4mo ago

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.

CVSS Details

Base Score
6.5
Exploitability
3.9
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
32.9% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-176

Affected Products 1

VendorProductVersionRange
litestarlitestar* <2.20.0

References 4

  • docs.litestar.dev https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0
    Release Notes
  • github.com https://github.com/litestar-org/litestar/commit/85db6183a76f8a6b3fd6ee3c88d860b9f37a2cca
    Patch
  • github.com https://github.com/litestar-org/litestar/releases/tag/v2.20.0
    Release Notes
  • github.com https://github.com/litestar-org/litestar/security/advisories/GHSA-vxqx-rh46-q2pg
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/litestar-org/litestar/commit/85db6183a76f8a6b3fd6ee3c88d860b9f37a2cca
    Patch