{"action":"Upgrade golang-1.27 to 1.27~rc3-1 or later.","affected":[{"fixed":"1.27~rc3-1","introduced":"0"}],"component":"golang-1.27","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.27~rc3-1"],"id":"tcs_01M5NT2B39F09KCVEGQEB2YZDA","modified_at":"2026-10-12T11:00:12.591355042Z","published_at":"2026-08-13T22:17:22.093Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-56853","https://security-tracker.debian.org/tracker/CVE-2026-56853"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-56853#Debian:14/golang-1.27","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-56853"}],"summary":"When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being a"}