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CVE-2026-64785

5.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.3 · appleNVD modified 2026-10-24 13:10

Affected (CPE criteria) 1

  • cpe:2.3:a:apple:swiftnio_http\/2:*:*:*:*:*:swift:*:*

References 1