Vulnerability in Litestar-org Litestar
CVE-2026-25478
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…
EPSS: 0.000 (5.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.
Affected products
- Litestar-org Litestar — versions < 2.20.0
Weakness classification (CWE)
References
- https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2 (x_refsource_CONFIRM)
- https://github.com/litestar-org/litestar/commit/eb87703b309efcc0d1b087dcb12784e76b003d5a (x_refsource_MISC)
- https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0 (x_refsource_MISC)
- https://github.com/litestar-org/litestar/releases/tag/v2.20.0 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-25478?
- CVE-2026-25478 is a high-severity vulnerability in Litestar-org Litestar, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 7.4/10. Published 2026-02-09.
- How severe is CVE-2026-25478?
- High severity. CVSS v3 base score is 7.4 out of 10.