{"id":"GHSA-8grv-jq2g-cfhw","aliases":[],"title":"amphp/http-server affected by HTTP/2 DDoS vulnerability","description":"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.\n\nIn 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.\n\nNote 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.","severity":"medium","score":5.3,"published":"2026-02-10T00:25:41.000Z","modified":"2026-02-10T00:38:54.311Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"amphp/http-server","ranges":[{"events":[{"introduced":"3.0.0-beta.1"},{"fixed":"3.4.4"}],"type":"ECOSYSTEM"}],"versions":["v3.0.0","v3.0.0-beta.1","v3.0.0-beta.2","v3.0.0-beta.3","v3.0.0-beta.4","v3.0.0-beta.5","v3.0.0-beta.6","v3.0.0-beta.7","v3.0.0-beta.8","v3.1.0","v3.2.0","v3.3.0","v3.3.1","v3.4.0","v3.4.1","v3.4.2","v3.4.3"],"fixed":["3.4.4"]},{"ecosystem":"Packagist","name":"amphp/http-server","ranges":[{"events":[{"introduced":"2.0.0-rc1"},{"fixed":"2.1.10"}],"type":"ECOSYSTEM"}],"versions":["v2.0.0","v2.0.0-rc1","v2.0.0-rc2","v2.0.0-rc3","v2.0.0-rc4","v2.0.1","v2.1.0","v2.1.1","v2.1.2","v2.1.3","v2.1.4","v2.1.5","v2.1.6","v2.1.7","v2.1.8","v2.1.9"],"fixed":["2.1.10"]}],"references":["https://github.com/amphp/http-server/security/advisories/GHSA-8grv-jq2g-cfhw","https://github.com/amphp/http-server","https://github.com/amphp/http-server/releases/tag/v2.1.10","https://github.com/amphp/http-server/releases/tag/v3.4.4"],"sources":[{"name":"OSV","id":"GHSA-8grv-jq2g-cfhw","modified":"2026-02-10T00:38:54.311926Z","url":"https://osv.dev/vulnerability/GHSA-8grv-jq2g-cfhw"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3}]}