guzzlehttp/psr7 vulnerabilities

PSR-7 message implementation that also provides common utility methods

Registry
Composer
Latest
3.2.0
License
MIT

6 known advisories

The latest version, 3.2.0, is not affected by any of them. Projects on older versions may be.

Update to the latest version:composer require guzzlehttp/psr7:^3.2.0

Security advisories for guzzlehttp/psr7

  • MediumGHSA-c2w2-prh8-qm9821 Jul 2026

    guzzlehttp/psr7: Host Confusion via Weak URI Host Validation

    Affected
    <2.12.3
    Fixed in
    2.12.3
  • MediumGHSA-vm85-hxw5-543219 Jun 2026

    guzzlehttp/psr7: CRLF Injection in HTTP Start-Line Serialization

    Affected
    <2.12.1
    Fixed in
    2.12.1
  • MediumGHSA-34xg-wgjx-8xph11 Jun 2026

    guzzlehttp/psr7 has Host Confusion via Authority Reinterpretation

    Affected
    <2.10.2
    Fixed in
    2.10.2
  • MediumGHSA-hq7v-mx3g-29hw11 Jun 2026

    guzzlehttp/psr7 has CRLF Injection via URI Host Component

    Affected
    <2.10.2
    Fixed in
    2.10.2
  • MediumGHSA-wxmh-65f7-jcvw19 Apr 2023

    Improper header name validation in guzzlehttp/psr7

    Affected
    <1.9.1 · >=2.0.0 <2.4.5
    Fixed in
    1.9.1, 2.4.5
  • MediumGHSA-q7rv-6hp3-vh9625 Mar 2022

    Improper Input Validation in guzzlehttp/psr7

    Affected
    <1.8.4 · >=2.0.0 <2.1.1
    Fixed in
    1.8.4, 2.1.1

Which of your client projects still run an old guzzlehttp/psr7?

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Other Composer packages

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily. Package details from the Composer registry.