{"schemaVersion":3,"id":"CVE-2026-64785","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"SwiftNIO HTTP/2 was missing validation on inbound HEADERS frames that let CR, LF, NUL, SP and other control characters reach an HTTP/1.1 backend through NIOHTTP2's HTTP/2-to-HTTP/1 codec, enabling HTTP request smuggling or response splitting. This vulnerability is addressed in swift-nio-http2 version 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