CVE-2026-64785 — Apple / swift-nio-http2

CVE-2026-64785

Apple / swift-nio-http2 PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apple / swift-nio-http2	affected 0 before 1.45.0

CWE

No CWE identifiers supplied.

References

https://github.com/apple/swift-nio-http2/security/advisories/GHSA-q3g2-m552-3r9c

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.