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CVE-2026-25478

PoC —
CVSS 3.1
6.5 medium
EPSS
<1%p33
Published
()
Modified
Description

Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to 2.20.0, CORSConfig.allowed_origins_regex is constructed using a regex built from configured allowlist values and used with fullmatch() for validation. Because metacharacters are not escaped, a malicious origin can match unexpectedly. The check relies on allowed_origins_regex.fullmatch(origin). This vulnerability is fixed in 2.20.0.

Vendors
litestar
Products
litestar
Weakness
CWE-942
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

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