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CVE-2026-64785

Quick assessment

Affected
Apple swift-nio-http2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apple swift-nio-http2是美国Apple公司开源的一个HTTP/2协议的Swift实现组件。 Apple swift-nio-http2 1.45.0之前版本存在安全漏洞，该漏洞源于SwiftNIO HTTP/2未对入站HEADERS帧中的CR、LF、NUL、SP等控制字符进行验证，导致这些字符通过NIOHTTP2的HTTP/2到HTTP/1编解码器到达HTTP/1.1后端，从而可能引发HTTP请求夹带或响应拆分攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.18% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apple swift-nio-http2 < 1.45.0 affected
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I. Basic Information for CVE-2026-64785

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apple swift-nio-http2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apple swift-nio-http2是美国Apple公司开源的一个HTTP/2协议的Swift实现组件。 Apple swift-nio-http2 1.45.0之前版本存在安全漏洞，该漏洞源于SwiftNIO HTTP/2未对入站HEADERS帧中的CR、LF、NUL、SP等控制字符进行验证，导致这些字符通过NIOHTTP2的HTTP/2到HTTP/1编解码器到达HTTP/1.1后端，从而可能引发HTTP请求夹带或响应拆分攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apple swift-nio-http2 0 ~ 1.45.0 -

II. Public POCs for CVE-2026-64785

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III. Intelligence Information for CVE-2026-64785

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Vendor Advisories for CVE-2026-64785 (1)

Same Patch Batch · Apple · 2026-07-23 · 3 CVEs total

CVE-2026-43820 Apple SwiftNIO SSL 安全漏洞
CVE-2026-43823 Apple Swift Crypto 安全漏洞

IV. Related Vulnerabilities

Same product: swift-nio-http2
Same vendor: Apple

V. Comments for CVE-2026-64785

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