CVE-2026-64785
CVE-2026-64785: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
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Red Hat
1 advisory- Advisory severityMedium5.3
Medium [CVE-2026-64785] HTTP Request Smuggling and Response Splitting via Incomplete Header Validation
CVE-2026-64785Source published Source updated
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. The issue stems from insufficient validation of incoming HTTP/2 HEADERS frames, which are parts of an HTTP/2 request. This allows special control characters, such as carriage return (CR) and line feed (LF), to reach an HTTP/1.1 backend, potentially bypassing security controls and enabling malicious manipulation of web requests or responses. This vulnerability in SwiftNIO HTTP/2, which could lead to HTTP request smuggling or response splitting due to incomplete header validation, does…
- Affected products in this advisory
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- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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