Vulnerability Database · Packagist · Package report
guzzlehttp/psr7: vulnerability history, versions and safety
guzzlehttp/psr7 is a package in the Packagist ecosystem. Vulert records 6 vulnerabilities for it across 63 releases, from Mar 2022 to Jul 2026. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.
Every vulnerability has a patched version to move to.
No published version shipped hostile code.
Vulert verdict on guzzlehttp/psr7 i
Updated on 23 Oct 2026
Every vulnerability Vulert records for this package has a fix, and the newest was recorded 21 Jul 2026. Apply the fixes listed below and you are clear.
What to do: Move the affected dependencies to the fixed versions listed below, then keep the package monitored so the next vulnerability reaches you. Fix it, then keep watch: Vulert alerts you when a new vulnerability affects the version you run. Monitor it with Vulert →
- Vulnerabilities on record 6 over 4 years · 4 in the last year i
- Latest disclosure 21 Jul 2026 i
- Highest CVSS 5.3 i
- With no published fix 0 i
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01 Versions
Which versions are affected
Every version Vulert holds for guzzlehttp/psr7, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.
Newest 63 of 63 versions on record. Severity counts are the vulnerabilities recorded against that exact release.
02 Disclosure history
How often vulnerabilities are recorded
Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 4 of the 6 were recorded in the last 12 months.
03 Vulnerabilities
Recorded vulnerabilities for guzzlehttp/psr7
| Vulnerability | Severity | Fixed version ↓ | Disclosed ↓ |
|---|---|---|---|
| CVE-2022-24775: Improper Input Validation in guzzlehttp/psr7 | 5.3 medium | 1.8.4 | 25 Mar 2022 |
| CVE-2023-29197: Improper header name validation in guzzlehttp/psr7 | 5.3 medium | 1.9.1 | 19 Apr 2023 |
| CVE-2026-48998: GuzzleHttp/Psr7 Host Confusion via Authority Reinterpretation | 5.3 medium | 2.10.2 | 11 Jun 2026 |
| CVE-2026-49214: Guzzlehttp/Psr7 CRLF Injection Vulnerability | 5.3 medium | 2.10.2 | 11 Jun 2026 |
| CVE-2026-55766: Guzzlehttp/Psr7 CRLF Injection in HTTP Start-Line Serialization | 4.8 medium | 2.12.1 | 19 Jun 2026 |
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Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315
