Technology · crates.io
h2 (crates.io) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 4 vulnerabilities in h2 (crates.io): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, RUSTSEC-2026-0258 - h2 unbounded empty DATA frames, was published on 17 August 2026.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
Latest h2 (crates.io) vulnerabilities
- RUSTSEC-2026-0258 - h2 unbounded empty DATA framesinfo
- RUSTSEC-2024-0332 - Degradation of service in h2 servers with CONTINUATION Floodinfo
- RUSTSEC-2024-0003 - Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)info
- CVE-2023-26964: RUSTSEC-2023-0034 - Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)infoEPSS 1.1%
Most severe h2 (crates.io) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2023-26964: RUSTSEC-2023-0034 - Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)infoEPSS 1.1%
- RUSTSEC-2026-0258 - h2 unbounded empty DATA framesinfo
- RUSTSEC-2024-0332 - Degradation of service in h2 servers with CONTINUATION Floodinfo
- RUSTSEC-2024-0003 - Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)info
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 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 1 | 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/crates-io-h2.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, "h2 (crates.io) vulnerabilities", https://junglewise.ai/threats/technologies/crates-io-h2, 27 September 2026.