GHSA-8grv-jq2g-cfhw
amphp/http-server affected by HTTP/2 DDoS vulnerability
Quick fix
GHSA-8grv-jq2g-cfhw — amphp/http-server: upgrade to the fixed version with the command below.
composer require amphp/http-server:^3.4.4Details
Versions of `amphp/http-server` prior to `3.4.4` for the 3.x release branch and prior to `2.1.10` for the 2.x release branch are vulnerable to the HTTP/2 "MadeYouReset" DoS attack described by CVE-2025-8671 and https://kb.cert.org/vuls/id/767506.
In versions `3.4.4` and `2.1.10`, stream reset protection has been refactored to account for the number of reset streams within a sliding time window.
Note that your application must expose HTTP/2 connections directly to be affected by this vulnerability. Servers behind a proxy using HTTP/1.x such as nginx are not affected.
Are you affected?
Enter the version of the package you're using.
Affected packages
3.0.0-beta.1Fixed in: 3.4.4composer require amphp/http-server:^3.4.42.0.0-rc1Fixed in: 2.1.10composer require amphp/http-server:^2.1.10