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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-25479 Detail

Description

Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to 2.20.0, in litestar.middleware.allowed_hosts, allowlist entries are compiled into regex patterns in a way that allows regex metacharacters to retain special meaning (e.g., . matches any character). This enables a bypass where an attacker supplies a host that matches the regex but is not the intended literal hostname. This vulnerability is fixed in 2.20.0.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0 GitHub, Inc.
https://github.com/litestar-org/litestar/commit/06b36f481d1bfea6f19995cfb4f203aba45c4ace GitHub, Inc.
https://github.com/litestar-org/litestar/releases/tag/v2.20.0 GitHub, Inc.
https://github.com/litestar-org/litestar/security/advisories/GHSA-93ph-p7v4-hwh4 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-185 Incorrect Regular Expression GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-25479
NVD Published Date:
02/09/2026
NVD Last Modified:
02/09/2026
Source:
GitHub, Inc.