Vendor
GuzzleHttp vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 4 vulnerabilities in GuzzleHttp: 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-2026-59882, was published on 8 July 2026. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
About GuzzleHttp
GuzzleHttp is the organization responsible for the Guzzle PHP HTTP client and related libraries.
GuzzleHttp technologies
Latest GuzzleHttp vulnerabilities
- CVE-2026-59882: Guzzle PSR-7 host confusion via weak URI host validationmediumCVSS 4.2EPSS 0.3%
- CVE-2026-55766: Guzzle PSR-7 CRLF injection in HTTP start-line serializationmediumCVSS 4.8EPSS 0.2%
- CVE-2026-49214: GuzzleHttp PSR-7 CRLF injection in URI host componentmediumCVSS 5.3EPSS 0.3%
- CVE-2026-48998: GuzzleHttp PSR-7 Host confusion via authority reinterpretationmediumCVSS 5.3EPSS 0.3%
Most severe GuzzleHttp vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-49214: GuzzleHttp PSR-7 CRLF injection in URI host componentmediumCVSS 5.3EPSS 0.3%
- CVE-2026-48998: GuzzleHttp PSR-7 Host confusion via authority reinterpretationmediumCVSS 5.3EPSS 0.3%
- CVE-2026-55766: Guzzle PSR-7 CRLF injection in HTTP start-line serializationmediumCVSS 4.8EPSS 0.2%
- CVE-2026-59882: Guzzle PSR-7 host confusion via weak URI host validationmediumCVSS 4.2EPSS 0.3%
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 | 1 | 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 | 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/vendors/guzzlehttp.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, "GuzzleHttp vulnerabilities", https://junglewise.ai/threats/vendors/guzzlehttp, 26 September 2026.