{"action":"Upgrade nghttp2 to 1.39.2-1 or later.","affected":[{"fixed":"1.39.2-1","introduced":"0"}],"component":"nghttp2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.39.2-1"],"id":"tcs_01M5NED1SGFQSKK8XAD497EB41","modified_at":"2026-09-21T07:02:15.562130839Z","published_at":"2019-08-13T21:15:12.223Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-9511","https://security-tracker.debian.org/tracker/CVE-2019-9511"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-9511","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-9511"}],"summary":"Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data"}