{"id":"GO-2026-6611","revision":"59322683f53c48f486678856e6de5956","records":[{"revision":"59322683f53c48f486678856e6de5956","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6611","aliases":["BIT-golang-2026-78669","CVE-2026-78669"],"title":"Excessive CPU consumption from repeated initial window changes in net/http","description":"A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.","state":0,"publishedAt":"2026-10-08T22:31:09+00:00","modifiedAt":"2026-10-16T09:55:38.9522779+00:00","affected":[{"ecosystem":"Go","name":"stdlib","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.26.9"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"stdlib","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.27.0-0"},{"kind":"fixed","version":"1.27.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"golang.org/x/net","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.60.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://go.dev/cl/847186","https://go.dev/cl/847308","https://go.dev/issue/81742","https://groups.google.com/g/golang-announce/c/U2fTuyDJznI","https://groups.google.com/g/golang-announce/c/ZPwCyRUuGBs"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6611","license":"OSV · upstream source license applies","key":"osv:GO-2026-6611","identifiers":["GO-2026-6611","BIT-golang-2026-78669","CVE-2026-78669"]},"retained":false,"historicalAffected":[]}],"coverage":[]}