# guzzlehttp/psr7 (Packagist) vulnerabilities

Source: https://junglewise.ai/threats/technologies/guzzlehttp-psr7  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/guzzlehttp-psr7.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 6 vulnerabilities in guzzlehttp/psr7 (Packagist): 0 in the last 7 days and 0 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.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 6 (0 critical, 0 exploited in the wild)

## About guzzlehttp/psr7 (Packagist)

A PHP library that provides implementations of PSR-7 HTTP message interfaces.

## Latest guzzlehttp/psr7 (Packagist) vulnerabilities

- [CVE-2026-59882: Guzzle PSR-7 host confusion via weak URI host validation](https://junglewise.ai/threats/cve-2026-59882-guzzle-psr-7-host-confusion-via-weak-uri-host-validation) (medium, CVSS 4.2, published 8 Jul 2026)
- [CVE-2026-55766: Guzzle PSR-7 CRLF injection in HTTP start-line serialization](https://junglewise.ai/threats/cve-2026-55766-guzzle-psr-7-crlf-injection-in-http-start-line-serialization) (medium, CVSS 4.8, published 23 Jun 2026)
- [CVE-2026-49214: GuzzleHttp PSR-7 CRLF injection in URI host component](https://junglewise.ai/threats/cve-2026-49214-guzzlehttp-psr-7-crlf-injection-in-uri-host-component) (medium, CVSS 5.3, published 11 Jun 2026)
- [CVE-2026-48998: GuzzleHttp PSR-7 Host confusion via authority reinterpretation](https://junglewise.ai/threats/cve-2026-48998-guzzlehttp-psr-7-host-confusion-via-authority-reinterpretation) (medium, CVSS 5.3, published 11 Jun 2026)
- [CVE-2023-29197: Improper header name validation in guzzlehttp/psr7](https://junglewise.ai/threats/cve-2023-29197-improper-header-name-validation-in-guzzlehttp-psr7) (low, CVSS 3.1, published 19 Apr 2023)
- [CVE-2022-24775: Improper Input Validation in guzzlehttp/psr7](https://junglewise.ai/threats/cve-2022-24775-drupal-core-2022-006-drupal-uses-the-third-party-guzzle-library) (low, CVSS 3.1, published 25 Mar 2022)

## Most severe guzzlehttp/psr7 (Packagist) vulnerabilities

- [CVE-2026-49214: GuzzleHttp PSR-7 CRLF injection in URI host component](https://junglewise.ai/threats/cve-2026-49214-guzzlehttp-psr-7-crlf-injection-in-uri-host-component) (medium, CVSS 5.3, published 11 Jun 2026)
- [CVE-2026-48998: GuzzleHttp PSR-7 Host confusion via authority reinterpretation](https://junglewise.ai/threats/cve-2026-48998-guzzlehttp-psr-7-host-confusion-via-authority-reinterpretation) (medium, CVSS 5.3, published 11 Jun 2026)
- [CVE-2026-55766: Guzzle PSR-7 CRLF injection in HTTP start-line serialization](https://junglewise.ai/threats/cve-2026-55766-guzzle-psr-7-crlf-injection-in-http-start-line-serialization) (medium, CVSS 4.8, published 23 Jun 2026)
- [CVE-2026-59882: Guzzle PSR-7 host confusion via weak URI host validation](https://junglewise.ai/threats/cve-2026-59882-guzzle-psr-7-host-confusion-via-weak-uri-host-validation) (medium, CVSS 4.2, published 8 Jul 2026)
- [CVE-2022-24775: Improper Input Validation in guzzlehttp/psr7](https://junglewise.ai/threats/cve-2022-24775-drupal-core-2022-006-drupal-uses-the-third-party-guzzle-library) (low, CVSS 3.1, published 25 Mar 2022)
- [CVE-2023-29197: Improper header name validation in guzzlehttp/psr7](https://junglewise.ai/threats/cve-2023-29197-improper-header-name-validation-in-guzzlehttp-psr7) (low, CVSS 3.1, published 19 Apr 2023)

## 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 |

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- [craftcms/cms (Packagist)](https://junglewise.ai/threats/technologies/craftcms-cms): 143 vulnerabilities
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- [getgrav/grav (Packagist)](https://junglewise.ai/threats/technologies/getgrav-grav): 127 vulnerabilities
- [typo3/cms-core (Packagist)](https://junglewise.ai/threats/technologies/typo3-cms-core): 127 vulnerabilities
- [concrete5/concrete5 (Packagist)](https://junglewise.ai/threats/technologies/concrete5-concrete5): 122 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, "guzzlehttp/psr7 (Packagist) vulnerabilities", https://junglewise.ai/threats/technologies/guzzlehttp-psr7, 9 November 2026.