Technology · Apple
Apple SwiftNIO HTTP2 vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 3 vulnerabilities in Apple SwiftNIO HTTP2: 0 in the last 7 days and 1 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.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 1
- Exploited in the wild
- 1
About Apple SwiftNIO HTTP2
An HTTP/2 implementation for SwiftNIO, providing a protocol-aware framework for building HTTP/2 clients and servers.
Latest Apple SwiftNIO HTTP2 vulnerabilities
- CVE-2026-64785: Apple SwiftNIO HTTP/2 request smuggling via header validation bypassmediumCVSS 5.3EPSS 0.1%
- CVE-2026-28898: Apple swift-nio-http2 request smuggling in HTTP2ToHTTP1CodeclowCVSS 0
- CVE-2023-44487: Multiple Vendors HTTP/2 denial of service via Rapid Reset attackcriticalexploited in the wildCVSS 5.3EPSS 100.0%
Most severe Apple SwiftNIO HTTP2 vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2023-44487: Multiple Vendors HTTP/2 denial of service via Rapid Reset attackcriticalexploited in the wildCVSS 5.3EPSS 100.0%
- CVE-2026-64785: Apple SwiftNIO HTTP/2 request smuggling via header validation bypassmediumCVSS 5.3EPSS 0.1%
- CVE-2026-28898: Apple swift-nio-http2 request smuggling in HTTP2ToHTTP1CodeclowCVSS 0
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 1 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/swiftnio-http2.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Apple SwiftNIO HTTP2 vulnerabilities", https://junglewise.ai/threats/technologies/swiftnio-http2, 26 September 2026.