GHSA-8grv-jq2g-cfhw: amphp/http-server affected by HTTP/2 DDoS vulnerability

medium Affects amphp/http-server. Feed 2026.10.29.4, updated 2026-10-29; published .

amphp/http-server affected by HTTP/2 DDoS vulnerability

Package
amphp/http-server Composer
Affected versions
>=3.0.0-beta.1 and <3.4.4 or >=2.0.0-rc1 and <2.1.10
Fixed in
3.4.4, 2.1.10
Severity
medium  CVSS 5.3
Exploitation
not on CISA KEV
Published
2026-02-10
Source
osv.dev

References

CWE-400
NVD recordamphp/http-server advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden deps composer.lock

# or, without Composer
pipx install phpwarden   &&   phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs   How findings are ranked

Related advisories