CVE-2026-25478

{"id": "CVE-2026-25478", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-02-09T20:15:57.017", "references": [{"url": "https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/litestar-org/litestar/commit/eb87703b309efcc0d1b087dcb12784e76b003d5a", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/litestar-org/litestar/releases/tag/v2.20.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-942"}]}], "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."}], "lastModified": "2026-02-17T15:15:29.523", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:litestar:litestar:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "67E26161-0CDE-4B8F-A065-04A19BC4CDCB", "versionEndExcluding": "2.20.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}