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.

INFO

Published Date :

2026-02-09T18:48:19.971Z

Last Modified :

2026-02-10T16:01:11.941Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25479 vulnerability.

Vendors Products
Litestar
  • Litestar
Litestar-org
  • Litestar
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-25479.

URL Resource
https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0 cve-icon cve-icon
https://github.com/litestar-org/litestar/commit/06b36f481d1bfea6f19995cfb4f203aba45c4ace cve-icon cve-icon
https://github.com/litestar-org/litestar/releases/tag/v2.20.0 cve-icon cve-icon
https://github.com/litestar-org/litestar/security/advisories/GHSA-93ph-p7v4-hwh4 cve-icon cve-icon
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