Detections
Analytics
CVE-2026-64785
medium
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 1.45.0.
References
https://github.com/apple/swift-nio-http2/security/advisories/GHSA-q3g2-m552-3r9c