{"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_01M5NT2F9WQ799J6PBP7B2QNNT","modified_at":"2026-10-12T11:00:12.603390018Z","published_at":"2026-10-08T23:17:01.620Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-56866","https://security-tracker.debian.org/tracker/CVE-2026-56866"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-56866#Debian:14/golang-1.26","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-56866"}],"summary":"When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CO"}