{"id":"GO-2026-6089","revision":"7e77ed0a20fd44f5b6ec5cb8f36fd8de","records":[{"revision":"7e77ed0a20fd44f5b6ec5cb8f36fd8de","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6089","aliases":["BIT-golang-2026-56853","CVE-2026-56853"],"title":"Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http","description":"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 applied when doing this.","state":0,"publishedAt":"2026-08-13T21:43:54+00:00","modifiedAt":"2026-10-07T10:41:45.8895507+00:00","affected":[{"ecosystem":"Go","name":"stdlib","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.25.13"},{"kind":"introduced","version":"1.26.0-0"},{"kind":"fixed","version":"1.26.6"},{"kind":"introduced","version":"1.27.0-0"},{"kind":"fixed","version":"1.27.0-rc.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://go.dev/issue/80205","https://go.dev/cl/795540","https://groups.google.com/g/golang-announce/c/94pEornpRlI"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6089","license":"OSV · upstream source license applies","key":"osv:GO-2026-6089","identifiers":["GO-2026-6089","BIT-golang-2026-56853","CVE-2026-56853"]},"retained":false,"historicalAffected":[]}],"coverage":[]}