{"action":"Upgrade golang-1.26 to 1.26.9-1 or later.","affected":[{"fixed":"1.26.9-1","introduced":"0"}],"component":"golang-1.26","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.26.9-1"],"id":"tcs_01M5NVF3Q6JFK6DVED29C3CN23","modified_at":"2026-10-12T22:00:13.833447073Z","published_at":"2026-10-08T23:17:03.647Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-78663","https://security-tracker.debian.org/tracker/CVE-2026-78663"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-78663#Debian:14/golang-1.26","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-78663"}],"summary":"The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a"}