Technology · Nine Nines
Nine Nines Cowlib vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 6 vulnerabilities in Nine Nines Cowlib: 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, CVE-2026-59248, was published on 28 July 2026.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
About Nine Nines Cowlib
cowlib is a library of support functions for manipulating Web protocols, including HTTP and WebSocket.
Latest Nine Nines Cowlib vulnerabilities
- CVE-2026-59248: Ninenines Cowlib denial of service in HPACK and QPACK decodinginfoCVSS 8.7
- CVE-2026-43966: ninenines cowlib HTTP response splitting in structured headersmediumCVSS 6.3EPSS 0.3%
- CVE-2026-43970: ninenines cowlib denial of service via SPDY decompression bombhighCVSS 8.2EPSS 0.2%
- CVE-2026-7790: ninenines cowlib denial of service in cow_http_tehighCVSS 8.7EPSS 0.1%
- CVE-2026-43969: ninenines cowlib CRLF injection in cow_cookie:cookie/1lowCVSS 3.2EPSS 0.0%
- CVE-2026-43968: ninenines cowlib CRLF injection in SSE encodermediumCVSS 4EPSS 0.1%
Most severe Nine Nines Cowlib vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-7790: ninenines cowlib denial of service in cow_http_tehighCVSS 8.7EPSS 0.1%
- CVE-2026-43970: ninenines cowlib denial of service via SPDY decompression bombhighCVSS 8.2EPSS 0.2%
- CVE-2026-43966: ninenines cowlib HTTP response splitting in structured headersmediumCVSS 6.3EPSS 0.3%
- CVE-2026-43968: ninenines cowlib CRLF injection in SSE encodermediumCVSS 4EPSS 0.1%
- CVE-2026-43969: ninenines cowlib CRLF injection in cow_cookie:cookie/1lowCVSS 3.2EPSS 0.0%
- CVE-2026-59248: Ninenines Cowlib denial of service in HPACK and QPACK decodinginfoCVSS 8.7
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 | 1 | 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/cowlib.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, "Nine Nines Cowlib vulnerabilities", https://junglewise.ai/threats/technologies/cowlib, 26 September 2026.