{"id":"CLEANSTART-2024-IW99789","summary":"Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service","details":"Security vulnerability affects the nghttp2 package. Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service.","modified":"2026-10-01T04:15:06.116818513Z","published":"2026-10-01T03:56:59.824134Z","upstream":["CVE-2019-9511"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-IW99789.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2019-9511"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9511"}],"affected":[{"package":{"name":"nghttp2","ecosystem":"CleanStart"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.39.2-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-IW99789.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}