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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:litestar:litestar:*:*:*:*:*:*:*:*", "matchCriteriaId": "67E26161-0CDE-4B8F-A065-04A19BC4CDCB", "versionEndExcluding": "2.20.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Litestar es un framework de Interfaz de Pasarela de Servidor As\u00edncrono (ASGI). Antes de la versi\u00f3n 2.20.0, CORSConfig.allowed_origins_regex se construye utilizando una expresi\u00f3n regular (regex) creada a partir de los valores de la lista de permitidos (allowlist) configurados y se usa con fullmatch() para la validaci\u00f3n. Debido a que los metacaracteres no se escapan, un origen malicioso puede coincidir de forma inesperada. La comprobaci\u00f3n se basa en allowed_origins_regex.fullmatch(origin). Esta vulnerabilidad se corrige en la versi\u00f3n 2.20.0."}], "id": "CVE-2026-25478", "lastModified": "2026-02-17T15:15:29.523", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-02-09T20:15:57.017", "references": [{"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/litestar-org/litestar/commit/eb87703b309efcc0d1b087dcb12784e76b003d5a"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/litestar-org/litestar/releases/tag/v2.20.0"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-942"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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