# Apple SwiftNIO HTTP2 vulnerabilities

Source: https://junglewise.ai/threats/technologies/swiftnio-http2  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/swiftnio-http2.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Apple SwiftNIO HTTP2: 0 in the last 7 days and 0 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-64785, was published on 23 July 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (1 critical, 1 exploited in the wild)

## About Apple SwiftNIO HTTP2

SwiftNIO HTTP2 is a Swift library implementing HTTP/2 protocol support built on Apple's SwiftNIO networking framework.

## Latest Apple SwiftNIO HTTP2 vulnerabilities

- [CVE-2026-64785: Apple SwiftNIO HTTP/2 request smuggling via header validation bypass](https://junglewise.ai/threats/cve-2026-64785-apple-swiftnio-http-2-request-smuggling-via-header-validation) (medium, CVSS 5.3, published 23 Jul 2026)
- [CVE-2026-28898: Apple swift-nio-http2 request smuggling in HTTP2ToHTTP1Codec](https://junglewise.ai/threats/cve-2026-28898-apple-swift-nio-http2-request-smuggling-in-http2tohttp1codec) (low, CVSS 0, published 25 Jun 2026)
- [CVE-2023-44487: Multiple Vendors HTTP/2 denial of service via Rapid Reset attack](https://junglewise.ai/threats/cve-2023-44487-http-2-rapid-reset-attack-vulnerability) (critical, exploited in the wild, CVSS 5.3, published 10 Oct 2023)

## Most severe Apple SwiftNIO HTTP2 vulnerabilities

- [CVE-2023-44487: Multiple Vendors HTTP/2 denial of service via Rapid Reset attack](https://junglewise.ai/threats/cve-2023-44487-http-2-rapid-reset-attack-vulnerability) (critical, exploited in the wild, CVSS 5.3, published 10 Oct 2023)
- [CVE-2026-64785: Apple SwiftNIO HTTP/2 request smuggling via header validation bypass](https://junglewise.ai/threats/cve-2026-64785-apple-swiftnio-http-2-request-smuggling-via-header-validation) (medium, CVSS 5.3, published 23 Jul 2026)
- [CVE-2026-28898: Apple swift-nio-http2 request smuggling in HTTP2ToHTTP1Codec](https://junglewise.ai/threats/cve-2026-28898-apple-swift-nio-http2-request-smuggling-in-http2tohttp1codec) (low, CVSS 0, published 25 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Apple technologies

- [Apple macOS](https://junglewise.ai/threats/technologies/macos): 1,496 vulnerabilities
- [Apple iPadOS](https://junglewise.ai/threats/technologies/ipados): 739 vulnerabilities
- [Apple visionOS](https://junglewise.ai/threats/technologies/visionos): 457 vulnerabilities
- [Apple macOS Golden Gate](https://junglewise.ai/threats/technologies/macos-golden-gate): 449 vulnerabilities
- [Apple watchOS](https://junglewise.ai/threats/technologies/watchos): 386 vulnerabilities
- [Apple tvOS](https://junglewise.ai/threats/technologies/tvos): 353 vulnerabilities
- [Apple Ios](https://junglewise.ai/threats/technologies/apple-ios): 206 vulnerabilities
- [Apple Iphone Os](https://junglewise.ai/threats/technologies/iphone-os): 203 vulnerabilities
- [Apple Safari](https://junglewise.ai/threats/technologies/safari): 189 vulnerabilities
- [Apple Multiple Products](https://junglewise.ai/threats/technologies/multiple-products): 77 vulnerabilities
- [Apple macOS Ventura](https://junglewise.ai/threats/technologies/macos-ventura): 27 vulnerabilities
- [Apple macOS Monterey](https://junglewise.ai/threats/technologies/macos-monterey): 24 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Apple SwiftNIO HTTP2 vulnerabilities", https://junglewise.ai/threats/technologies/swiftnio-http2, 11 November 2026.