{"api_version":"1","generated_at":"2026-11-01T20:22:50+00:00","cve":"CVE-2026-63346","urls":{"html":"https://cve.report/CVE-2026-63346","api":"https://cve.report/api/cve/CVE-2026-63346.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63346","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63346"},"summary":{"title":"Refitter: C# source injection through OpenAPI header parameter names","description":"Refitter is a tool for generating a C# REST API client using the Refit library. Prior to 2.1.2, the header parameter name in `parameters[].name` with `in: header` is emitted verbatim into a Refit `[Header(\"<name>\")]` attribute string without escaping quotation marks. An attacker-influenced OpenAPI description can pass default validation without `--skip-validation` and break out from the parameter-list position by closing the parameter and method syntax, attribute, interface, and namespace. 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