{"id":"BIT-golang-2026-78669","revision":null,"records":[{"revision":"80f21fe5c10d45f68d89d9ff7d02e77d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-78669","aliases":[],"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":"2026-10-08T22:53:59.53+00:00","modifiedAt":"2026-10-09T16:32:57.198+00:00","affected":[{"ecosystem":"https://pkg.go.dev","name":"net/http","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"Go standard library\",\n \"product\": \"net/http\",\n \"collectionURL\": \"https://pkg.go.dev\",\n \"packageName\": \"net/http\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"lessThan\": \"1.26.9\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ],\n \"programRoutines\": [\n {\n \"name\": \"http2outflow.add\"\n },\n {\n \"name\": \"http2outflow.available\"\n },\n {\n \"name\": \"http2outflow.setConnFlow\"\n },\n {\n \"name\": \"http2outflow.take\"\n },\n {\n \"name\": \"http2Server.serveConn\"\n },\n {\n \"name\": \"http2serverConn.newStream\"\n },\n {\n \"name\": \"http2serverConn.processSettingInitialWindowSize\"\n },\n {\n \"name\": \"http2serverConn.processWindowUpdate\"\n },\n {\n \"name\": \"http2serverConn.scheduleFrameWrite\"\n },\n {\n \"name\": \"http2ClientConn.addStreamLocked\"\n },\n {\n \"name\": \"http2Transport.newClientConn\"\n },\n {\n \"name\": \"http2clientConnReadLoop.processSettingsNoWrite\"\n },\n {\n \"name\": \"http2clientConnReadLoop.processWindowUpdate\"\n },\n {\n \"name\": \"http2clientConnReadLoop.streamByID\"\n },\n {\n \"name\": \"http2clientStream.awaitFlowControl\"\n },\n {\n \"name\": \"http2clientStream.cleanupWriteRequest\"\n },\n {\n \"name\": \"http2FrameWriteRequest.Consume\"\n },\n {\n \"name\": \"CanonicalHeaderKey\"\n },\n {\n \"name\": \"Client.CloseIdleConnections\"\n },\n {\n \"name\": \"Client.Do\"\n },\n {\n \"name\": \"Client.Get\"\n },\n {\n \"name\": \"Client.Head\"\n },\n {\n \"name\": \"Client.Post\"\n },\n {\n \"name\": \"Client.PostForm\"\n },\n {\n \"name\": \"ClientConn.Close\"\n },\n {\n \"name\": \"ClientConn.RoundTrip\"\n },\n {\n \"name\": \"Cookie.String\"\n },\n {\n \"name\": \"Cookie.Valid\"\n },\n {\n \"name\": \"CrossOriginProtection.AddInsecureBypassPattern\"\n },\n {\n \"name\": \"CrossOriginProtection.AddTrustedOrigin\"\n },\n {\n \"name\": \"CrossOriginProtection.Check\"\n },\n {\n \"name\": \"Dir.Open\"\n },\n {\n \"name\": \"Error\"\n },\n {\n \"name\": \"Get\"\n },\n {\n \"name\": \"Handle\"\n },\n {\n \"name\": \"HandleFunc\"\n },\n {\n \"name\": \"HandlerFunc.ServeHTTP\"\n },\n {\n \"name\": \"Head\"\n },\n {\n \"name\": \"Header.Add\"\n },\n {\n \"name\": \"Header.Del\"\n },\n {\n \"name\": \"Header.Get\"\n },\n {\n \"name\": \"Header.Set\"\n },\n {\n \"name\": \"Header.Values\"\n },\n {\n \"name\": \"Header.Write\"\n },\n {\n \"name\": \"Header.WriteSubset\"\n },\n {\n \"name\": \"ListenAndServe\"\n },\n {\n \"name\": \"ListenAndServeTLS\"\n },\n {\n \"name\": \"NewRequest\"\n },\n {\n \"name\": \"NewRequestWithContext\"\n },\n {\n \"name\": \"NotFound\"\n },\n {\n \"name\": \"ParseCookie\"\n },\n {\n \"name\": \"ParseSetCookie\"\n },\n {\n \"name\": \"ParseTime\"\n },\n {\n \"name\": \"Post\"\n },\n {\n \"name\": \"PostForm\"\n },\n {\n \"name\": \"ProxyFromEnvironment\"\n },\n {\n \"name\": \"ReadRequest\"\n },\n {\n \"name\": \"ReadResponse\"\n },\n {\n \"name\": \"Redirect\"\n },\n {\n \"name\": \"Request.AddCookie\"\n },\n {\n \"name\": \"Request.BasicAuth\"\n },\n {\n \"name\": \"Request.Cookie\"\n },\n {\n \"name\": \"Request.Cookies\"\n },\n {\n \"name\": \"Request.CookiesNamed\"\n },\n {\n \"name\": \"Request.FormFile\"\n },\n {\n \"name\": \"Request.FormValue\"\n },\n {\n \"name\": \"Request.MultipartReader\"\n },\n {\n \"name\": \"Request.ParseForm\"\n },\n {\n \"name\": \"Request.ParseMultipartForm\"\n },\n {\n \"name\": \"Request.PostFormValue\"\n },\n {\n \"name\": \"Request.Referer\"\n },\n {\n \"name\": \"Request.SetBasicAuth\"\n },\n {\n \"name\": \"Request.UserAgent\"\n },\n {\n \"name\": \"Request.Write\"\n },\n {\n \"name\": \"Request.WriteProxy\"\n },\n {\n \"name\": \"Response.Cookies\"\n },\n {\n \"name\": \"Response.Location\"\n },\n {\n \"name\": \"Response.Write\"\n },\n {\n \"name\": \"ResponseController.EnableFullDuplex\"\n },\n {\n \"name\": \"ResponseController.Flush\"\n },\n {\n \"name\": \"ResponseController.Hijack\"\n },\n {\n \"name\": \"ResponseController.SetReadDeadline\"\n },\n {\n \"name\": \"ResponseController.SetWriteDeadline\"\n },\n {\n \"name\": \"Serve\"\n },\n {\n \"name\": \"ServeContent\"\n },\n {\n \"name\": \"ServeFile\"\n },\n {\n \"name\": \"ServeFileFS\"\n },\n {\n \"name\": \"ServeMux.Handle\"\n },\n {\n \"name\": \"ServeMux.HandleFunc\"\n },\n {\n \"name\": \"ServeMux.ServeHTTP\"\n },\n {\n \"name\": \"ServeTLS\"\n },\n {\n \"name\": \"Server.Close\"\n },\n {\n \"name\": \"Server.ListenAndServe\"\n },\n {\n \"name\": \"Server.ListenAndServeTLS\"\n },\n {\n \"name\": \"Server.Serve\"\n },\n {\n \"name\": \"Server.ServeTLS\"\n },\n {\n \"name\": \"Server.SetKeepAlivesEnabled\"\n },\n {\n \"name\": \"Server.Shutdown\"\n },\n {\n \"name\": \"SetCookie\"\n },\n {\n \"name\": \"Transport.CancelRequest\"\n },\n {\n \"name\": \"Transport.Clone\"\n },\n {\n \"name\": \"Transport.CloseIdleConnections\"\n },\n {\n \"name\": \"Transport.NewClientConn\"\n },\n {\n \"name\": \"Transport.RoundTrip\"\n },\n {\n \"name\": \"body.Close\"\n },\n {\n \"name\": \"body.Read\"\n },\n {\n \"name\": \"bodyEOFSignal.Close\"\n },\n {\n \"name\": \"bodyEOFSignal.Read\"\n },\n {\n \"name\": \"bodyLocked.Read\"\n },\n {\n \"name\": \"bufioFlushWriter.Write\"\n },\n {\n \"name\": \"cancelTimerBody.Close\"\n },\n {\n \"name\": \"cancelTimerBody.Read\"\n },\n {\n \"name\": \"checkConnErrorWriter.Write\"\n },\n {\n \"name\": \"chunkWriter.Write\"\n },\n {\n \"name\": \"connReader.Read\"\n },\n {\n \"name\": \"connectMethodKey.String\"\n },\n {\n \"name\": \"expectContinueReader.Close\"\n },\n {\n \"name\": \"expectContinueReader.Read\"\n },\n {\n \"name\": \"extraHeader.Write\"\n },\n {\n \"name\": \"fileHandler.ServeHTTP\"\n },\n {\n \"name\": \"fileTransport.RoundTrip\"\n },\n {\n \"name\": \"globalOptionsHandler.ServeHTTP\"\n },\n {\n \"name\": \"gzipReader.Close\"\n },\n {\n \"name\": \"gzipReader.Read\"\n },\n {\n \"name\": \"http1ClientConn.Close\"\n },\n {\n \"name\": \"http1ClientConn.RoundTrip\"\n },\n {\n \"name\": \"http2ClientConn.Close\"\n },\n {\n \"name\": \"http2ClientConn.Ping\"\n },\n {\n \"name\": \"http2ClientConn.RoundTrip\"\n },\n {\n \"name\": \"http2ClientConn.Shutdown\"\n },\n {\n \"name\": \"http2ConnectionError.Error\"\n },\n {\n \"name\": \"http2ErrCode.String\"\n },\n {\n \"name\": \"http2FrameHeader.String\"\n },\n {\n \"name\": \"http2FrameType.String\"\n },\n {\n \"name\": \"http2FrameWriteRequest.String\"\n },\n {\n \"name\": \"http2Framer.ReadFrame\"\n },\n {\n \"name\": \"http2Framer.ReadFrameForHeader\"\n },\n {\n \"name\": \"http2Framer.ReadFrameHeader\"\n },\n {\n \"name\": \"http2Framer.WriteContinuation\"\n },\n {\n \"name\": \"http2Framer.WriteData\"\n },\n {\n \"name\": \"http2Framer.WriteDataPadded\"\n },\n {\n \"name\": \"http2Framer.WriteGoAway\"\n },\n {\n \"name\": \"http2Framer.WriteHeaders\"\n },\n {\n \"name\": \"http2Framer.WritePing\"\n },\n {\n \"name\": \"http2Framer.WritePriority\"\n },\n {\n \"name\": \"http2Framer.WritePushPromise\"\n },\n {\n \"name\": \"http2Framer.WriteRSTStream\"\n },\n {\n \"name\": \"http2Framer.WriteRawFrame\"\n },\n {\n \"name\": \"http2Framer.WriteSettings\"\n },\n {\n \"name\": \"http2Framer.WriteSettingsAck\"\n },\n {\n \"name\": \"http2Framer.WriteWindowUpdate\"\n },\n {\n \"name\": \"http2GoAwayError.Error\"\n },\n {\n \"name\": \"http2Server.ServeConn\"\n },\n {\n \"name\": \"http2Setting.String\"\n },\n {\n \"name\": \"http2SettingID.String\"\n },\n {\n \"name\": \"http2SettingsFrame.ForeachSetting\"\n },\n {\n \"name\": \"http2StreamError.Error\"\n },\n {\n \"name\": \"http2Transport.CloseIdleConnections\"\n },\n {\n \"name\": \"http2Transport.NewClientConn\"\n },\n {\n \"name\": \"http2Transport.RoundTrip\"\n },\n {\n \"name\": \"http2Transport.RoundTripOpt\"\n },\n {\n \"name\": \"http2bufferedWriter.Flush\"\n },\n {\n \"name\": \"http2bufferedWriter.Write\"\n },\n {\n \"name\": \"http2bufferedWriterTimeoutWriter.Write\"\n },\n {\n \"name\": \"http2chunkWriter.Write\"\n },\n {\n \"name\": \"http2clientConnPool.GetClientConn\"\n },\n {\n \"name\": \"http2connError.Error\"\n },\n {\n \"name\": \"http2dataBuffer.Read\"\n },\n {\n \"name\": \"http2duplicatePseudoHeaderError.Error\"\n },\n {\n \"name\": \"http2gzipReader.Close\"\n },\n {\n \"name\": \"http2gzipReader.Read\"\n },\n {\n \"name\": \"http2headerFieldNameError.Error\"\n },\n {\n \"name\": \"http2headerFieldValueError.Error\"\n },\n {\n \"name\": \"http2netHTTPClientConn.Close\"\n },\n {\n \"name\": \"http2netHTTPClientConn.RoundTrip\"\n },\n {\n \"name\": \"http2noDialClientConnPool.GetClientConn\"\n },\n {\n \"name\": \"http2noDialH2RoundTripper.NewClientConn\"\n },\n {\n \"name\": \"http2noDialH2RoundTripper.RoundTrip\"\n },\n {\n \"name\": \"http2pipe.Read\"\n },\n {\n \"name\": \"http2priorityWriteSchedulerRFC7540.CloseStream\"\n },\n {\n \"name\": \"http2priorityWriteSchedulerRFC7540.OpenStream\"\n },\n {\n \"name\": \"http2priorityWriteSchedulerRFC7540.Pop\"\n },\n {\n \"name\": \"http2priorityWriteSchedulerRFC9218.OpenStream\"\n },\n {\n \"name\": \"http2priorityWriteSchedulerRFC9218.Pop\"\n },\n {\n \"name\": \"http2pseudoHeaderError.Error\"\n },\n {\n \"name\": \"http2randomWriteScheduler.Pop\"\n },\n {\n \"name\": \"http2requestBody.Close\"\n },\n {\n \"name\": \"http2requestBody.Read\"\n },\n {\n \"name\": \"http2responseWriter.Flush\"\n },\n {\n \"name\": \"http2responseWriter.FlushError\"\n },\n {\n \"name\": \"http2responseWriter.Push\"\n },\n {\n \"name\": \"http2responseWriter.SetReadDeadline\"\n },\n {\n \"name\": \"http2responseWriter.SetWriteDeadline\"\n },\n {\n \"name\": \"http2responseWriter.Write\"\n },\n {\n \"name\": \"http2responseWriter.WriteHeader\"\n },\n {\n \"name\": \"http2responseWriter.WriteString\"\n },\n {\n \"name\": \"http2roundRobinWriteScheduler.OpenStream\"\n },\n {\n \"name\": \"http2roundRobinWriteScheduler.Pop\"\n },\n {\n \"name\": \"http2serverConn.CloseConn\"\n },\n {\n \"name\": \"http2serverConn.Flush\"\n },\n {\n \"name\": \"http2stickyErrWriter.Write\"\n },\n {\n \"name\": \"http2transportResponseBody.Close\"\n },\n {\n \"name\": \"http2transportResponseBody.Read\"\n },\n {\n \"name\": \"http2unencryptedTransport.RoundTrip\"\n },\n {\n \"name\": \"http2writeData.String\"\n },\n {\n \"name\": \"initALPNRequest.ServeHTTP\"\n },\n {\n \"name\": \"loggingConn.Close\"\n },\n {\n \"name\": \"loggingConn.Read\"\n },\n {\n \"name\": \"loggingConn.Write\"\n },\n {\n \"name\": \"maxBytesReader.Close\"\n },\n {\n \"name\": \"maxBytesReader.Read\"\n },\n {\n \"name\": \"onceCloseListener.Close\"\n },\n {\n \"name\": \"persistConn.Read\"\n },\n {\n \"name\": \"persistConnWriter.ReadFrom\"\n },\n {\n \"name\": \"persistConnWriter.Write\"\n },\n {\n \"name\": \"populateResponse.Write\"\n },\n {\n \"name\": \"populateResponse.WriteHeader\"\n },\n {\n \"name\": \"readTrackingBody.Close\"\n },\n {\n \"name\": \"readTrackingBody.Read\"\n },\n {\n \"name\": \"readWriteCloserBody.CloseWrite\"\n },\n {\n \"name\": \"readWriteCloserBody.Read\"\n },\n {\n \"name\": \"redirectHandler.ServeHTTP\"\n },\n {\n \"name\": \"response.Flush\"\n },\n {\n \"name\": \"response.FlushError\"\n },\n {\n \"name\": \"response.Hijack\"\n },\n {\n \"name\": \"response.ReadFrom\"\n },\n {\n \"name\": \"response.Write\"\n },\n {\n \"name\": \"response.WriteHeader\"\n },\n {\n \"name\": \"response.WriteString\"\n },\n {\n \"name\": \"serverHandler.ServeHTTP\"\n },\n {\n \"name\": \"socksDialer.DialWithConn\"\n },\n {\n \"name\": \"socksUsernamePassword.Authenticate\"\n },\n {\n \"name\": \"stringWriter.WriteString\"\n },\n {\n \"name\": \"timeoutHandler.ServeHTTP\"\n },\n {\n \"name\": \"timeoutWriter.Write\"\n },\n {\n \"name\": \"timeoutWriter.WriteHeader\"\n },\n {\n \"name\": \"transportReadFromServerError.Error\"\n },\n {\n \"name\": \"unencryptedHTTP2Request.ServeHTTP\"\n }\n ],\n \"defaultStatus\": \"unaffected\"\n }"},{"ecosystem":"https://pkg.go.dev","name":"net/http/internal/http2","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"Go standard library\",\n \"product\": \"net/http/internal/http2\",\n \"collectionURL\": \"https://pkg.go.dev\",\n \"packageName\": \"net/http/internal/http2\",\n \"versions\": [\n {\n \"version\": \"1.27.0-0\",\n \"lessThan\": \"1.27.2\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ],\n \"programRoutines\": [\n {\n \"name\": \"outflow.add\"\n },\n {\n \"name\": \"outflow.available\"\n },\n {\n \"name\": \"outflow.setConnFlow\"\n },\n {\n \"name\": \"outflow.take\"\n },\n {\n \"name\": \"Server.serveConn\"\n },\n {\n \"name\": \"serverConn.newStream\"\n },\n {\n \"name\": \"serverConn.processSettingInitialWindowSize\"\n },\n {\n \"name\": \"serverConn.processWindowUpdate\"\n },\n {\n \"name\": \"serverConn.scheduleFrameWrite\"\n },\n {\n \"name\": \"ClientConn.addStreamLocked\"\n },\n {\n \"name\": \"Transport.newClientConn\"\n },\n {\n \"name\": \"clientConnReadLoop.processSettingsNoWrite\"\n },\n {\n \"name\": \"clientConnReadLoop.processWindowUpdate\"\n },\n {\n \"name\": \"clientConnReadLoop.streamByID\"\n },\n {\n \"name\": \"clientStream.awaitFlowControl\"\n },\n {\n \"name\": \"clientStream.cleanupWriteRequest\"\n },\n {\n \"name\": \"FrameWriteRequest.Consume\"\n },\n {\n \"name\": \"ClientConn.Close\"\n },\n {\n \"name\": \"ClientConn.Ping\"\n },\n {\n \"name\": \"ClientConn.RoundTrip\"\n },\n {\n \"name\": \"ClientConn.Shutdown\"\n },\n {\n \"name\": \"Framer.ReadFrame\"\n },\n {\n \"name\": \"Framer.ReadFrameForHeader\"\n },\n {\n \"name\": \"Framer.ReadFrameHeader\"\n },\n {\n \"name\": \"Framer.WriteContinuation\"\n },\n {\n \"name\": \"Framer.WriteData\"\n },\n {\n \"name\": \"Framer.WriteDataPadded\"\n },\n {\n \"name\": \"Framer.WriteGoAway\"\n },\n {\n \"name\": \"Framer.WriteHeaders\"\n },\n {\n \"name\": \"Framer.WritePing\"\n },\n {\n \"name\": \"Framer.WritePriority\"\n },\n {\n \"name\": \"Framer.WritePriorityUpdate\"\n },\n {\n \"name\": \"Framer.WritePushPromise\"\n },\n {\n \"name\": \"Framer.WriteRSTStream\"\n },\n {\n \"name\": \"Framer.WriteRawFrame\"\n },\n {\n \"name\": \"Framer.WriteSettings\"\n },\n {\n \"name\": \"Framer.WriteSettingsAck\"\n },\n {\n \"name\": \"Framer.WriteWindowUpdate\"\n },\n {\n \"name\": \"NetHTTPClientConn.Close\"\n },\n {\n \"name\": \"NetHTTPClientConn.Ping\"\n },\n {\n \"name\": \"NetHTTPClientConn.RoundTrip\"\n },\n {\n \"name\": \"ReadFrameHeader\"\n },\n {\n \"name\": \"Server.GracefulShutdown\"\n },\n {\n \"name\": \"Server.ServeConn\"\n },\n {\n \"name\": \"SettingsFrame.ForeachSetting\"\n },\n {\n \"name\": \"Transport.AddConn\"\n },\n {\n \"name\": \"Transport.CloseIdleConnections\"\n },\n {\n \"name\": \"Transport.NewClientConn\"\n },\n {\n \"name\": \"Transport.RoundTrip\"\n },\n {\n \"name\": \"Transport.RoundTripOpt\"\n },\n {\n \"name\": \"bufferedWriter.Flush\"\n },\n {\n \"name\": \"bufferedWriter.Write\"\n },\n {\n \"name\": \"bufferedWriterTimeoutWriter.Write\"\n },\n {\n \"name\": \"chunkWriter.Write\"\n },\n {\n \"name\": \"clientConnPool.GetClientConn\"\n },\n {\n \"name\": \"gzipReader.Close\"\n },\n {\n \"name\": \"gzipReader.Read\"\n },\n {\n \"name\": \"noDialClientConnPool.GetClientConn\"\n },\n {\n \"name\": \"priorityWriteSchedulerRFC9218.Pop\"\n },\n {\n \"name\": \"requestBody.Close\"\n },\n {\n \"name\": \"responseWriter.Flush\"\n },\n {\n \"name\": \"responseWriter.FlushError\"\n },\n {\n \"name\": \"responseWriter.Push\"\n },\n {\n \"name\": \"responseWriter.Write\"\n },\n {\n \"name\": \"responseWriter.WriteHeader\"\n },\n {\n \"name\": \"responseWriter.WriteString\"\n },\n {\n \"name\": \"roundRobinWriteScheduler.Pop\"\n },\n {\n \"name\": \"serve400Handler.ServeHTTP\"\n },\n {\n \"name\": \"serverConn.Flush\"\n },\n {\n \"name\": \"stickyErrWriter.Write\"\n },\n {\n \"name\": \"transportResponseBody.Close\"\n },\n {\n \"name\": \"transportResponseBody.Read\"\n }\n ],\n \"defaultStatus\": \"unaffected\"\n }"},{"ecosystem":"https://pkg.go.dev","name":"golang.org/x/net/http2","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"vendor\": \"golang.org/x/net\",\n \"product\": \"golang.org/x/net/http2\",\n \"collectionURL\": \"https://pkg.go.dev\",\n \"packageName\": \"golang.org/x/net/http2\",\n \"versions\": [\n {\n \"version\": \"0\",\n \"lessThan\": \"0.60.0\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ],\n \"programRoutines\": [\n {\n \"name\": \"outflow.add\"\n },\n {\n \"name\": \"outflow.available\"\n },\n {\n \"name\": \"outflow.setConnFlow\"\n },\n {\n \"name\": \"outflow.take\"\n },\n {\n \"name\": \"Server.serveConn\"\n },\n {\n \"name\": \"serverConn.newStream\"\n },\n {\n \"name\": \"serverConn.processSettingInitialWindowSize\"\n },\n {\n \"name\": \"serverConn.processWindowUpdate\"\n },\n {\n \"name\": \"serverConn.scheduleFrameWrite\"\n },\n {\n \"name\": \"ClientConn.addStreamLocked\"\n },\n {\n \"name\": \"Transport.newClientConn\"\n },\n {\n \"name\": \"clientConnReadLoop.processSettingsNoWrite\"\n },\n {\n \"name\": \"clientConnReadLoop.processWindowUpdate\"\n },\n {\n \"name\": \"clientConnReadLoop.streamByID\"\n },\n {\n \"name\": \"clientStream.awaitFlowControl\"\n },\n {\n \"name\": \"clientStream.cleanupWriteRequest\"\n },\n {\n \"name\": \"FrameWriteRequest.Consume\"\n },\n {\n \"name\": \"ClientConn.Close\"\n },\n {\n \"name\": \"ClientConn.Ping\"\n },\n {\n \"name\": \"ClientConn.RoundTrip\"\n },\n {\n \"name\": \"ClientConn.Shutdown\"\n },\n {\n \"name\": \"ConfigureServer\"\n },\n {\n \"name\": \"ConfigureTransport\"\n },\n {\n \"name\": \"ConfigureTransports\"\n },\n {\n \"name\": \"ConnectionError.Error\"\n },\n {\n \"name\": \"ErrCode.String\"\n },\n {\n \"name\": \"FrameHeader.String\"\n },\n {\n \"name\": \"FrameType.String\"\n },\n {\n \"name\": \"FrameWriteRequest.String\"\n },\n {\n \"name\": \"Framer.ReadFrame\"\n },\n {\n \"name\": \"Framer.ReadFrameForHeader\"\n },\n {\n \"name\": \"Framer.ReadFrameHeader\"\n },\n {\n \"name\": \"Framer.WriteContinuation\"\n },\n {\n \"name\": \"Framer.WriteData\"\n },\n {\n \"name\": \"Framer.WriteDataPadded\"\n },\n {\n \"name\": \"Framer.WriteGoAway\"\n },\n {\n \"name\": \"Framer.WriteHeaders\"\n },\n {\n \"name\": \"Framer.WritePing\"\n },\n {\n \"name\": \"Framer.WritePriority\"\n },\n {\n \"name\": \"Framer.WritePriorityUpdate\"\n },\n {\n \"name\": \"Framer.WritePushPromise\"\n },\n {\n \"name\": \"Framer.WriteRSTStream\"\n },\n {\n \"name\": \"Framer.WriteRawFrame\"\n },\n {\n \"name\": \"Framer.WriteSettings\"\n },\n {\n \"name\": \"Framer.WriteSettingsAck\"\n },\n {\n \"name\": \"Framer.WriteWindowUpdate\"\n },\n {\n \"name\": \"GoAwayError.Error\"\n },\n {\n \"name\": \"ReadFrameHeader\"\n },\n {\n \"name\": \"Server.ServeConn\"\n },\n {\n \"name\": \"Setting.String\"\n },\n {\n \"name\": \"SettingID.String\"\n },\n {\n \"name\": \"SettingsFrame.ForeachSetting\"\n },\n {\n \"name\": \"StreamError.Error\"\n },\n {\n \"name\": \"Transport.CloseIdleConnections\"\n },\n {\n \"name\": \"Transport.NewClientConn\"\n },\n {\n \"name\": \"Transport.RoundTrip\"\n },\n {\n \"name\": \"Transport.RoundTripOpt\"\n },\n {\n \"name\": \"bufferedWriter.Flush\"\n },\n {\n \"name\": \"bufferedWriter.Write\"\n },\n {\n \"name\": \"bufferedWriterTimeoutWriter.Write\"\n },\n {\n \"name\": \"chunkWriter.Write\"\n },\n {\n \"name\": \"clientConnPool.GetClientConn\"\n },\n {\n \"name\": \"connError.Error\"\n },\n {\n \"name\": \"dataBuffer.Read\"\n },\n {\n \"name\": \"duplicatePseudoHeaderError.Error\"\n },\n {\n \"name\": \"gzipReader.Close\"\n },\n {\n \"name\": \"gzipReader.Read\"\n },\n {\n \"name\": \"headerFieldNameError.Error\"\n },\n {\n \"name\": \"headerFieldValueError.Error\"\n },\n {\n \"name\": \"netHTTPClientConn.Close\"\n },\n {\n \"name\": \"netHTTPClientConn.RoundTrip\"\n },\n {\n \"name\": \"noDialClientConnPool.GetClientConn\"\n },\n {\n \"name\": \"noDialH2RoundTripper.NewClientConn\"\n },\n {\n \"name\": \"noDialH2RoundTripper.RoundTrip\"\n },\n {\n \"name\": \"pipe.Read\"\n },\n {\n \"name\": \"priorityWriteSchedulerRFC7540.CloseStream\"\n },\n {\n \"name\": \"priorityWriteSchedulerRFC7540.OpenStream\"\n },\n {\n \"name\": \"priorityWriteSchedulerRFC7540.Pop\"\n },\n {\n \"name\": \"priorityWriteSchedulerRFC9218.OpenStream\"\n },\n {\n \"name\": \"priorityWriteSchedulerRFC9218.Pop\"\n },\n {\n \"name\": \"pseudoHeaderError.Error\"\n },\n {\n \"name\": \"randomWriteScheduler.Pop\"\n },\n {\n \"name\": \"requestBody.Close\"\n },\n {\n \"name\": \"requestBody.Read\"\n },\n {\n \"name\": \"responseWriter.Flush\"\n },\n {\n \"name\": \"responseWriter.FlushError\"\n },\n {\n \"name\": \"responseWriter.Push\"\n },\n {\n \"name\": \"responseWriter.SetReadDeadline\"\n },\n {\n \"name\": \"responseWriter.SetWriteDeadline\"\n },\n {\n \"name\": \"responseWriter.Write\"\n },\n {\n \"name\": \"responseWriter.WriteHeader\"\n },\n {\n \"name\": \"responseWriter.WriteString\"\n },\n {\n \"name\": \"roundRobinWriteScheduler.OpenStream\"\n },\n {\n \"name\": \"roundRobinWriteScheduler.Pop\"\n },\n {\n \"name\": \"serverConn.CloseConn\"\n },\n {\n \"name\": \"serverConn.Flush\"\n },\n {\n \"name\": \"stickyErrWriter.Write\"\n },\n {\n \"name\": \"transportResponseBody.Close\"\n },\n {\n \"name\": \"transportResponseBody.Read\"\n },\n {\n \"name\": \"unencryptedTransport.RoundTrip\"\n },\n {\n \"name\": \"writeData.String\"\n }\n ],\n \"defaultStatus\": \"unaffected\"\n }"}],"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","https://pkg.go.dev/vuln/GO-2026-6611"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-78669","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-78669","identifiers":["CVE-2026-78669"]},"retained":false,"historicalAffected":[]},{"revision":"3cc7626c88104f4faa32625dba534e2a","observedAt":"2026-11-07T14:30:25.468+00:00","statement":{"source":"euvd","id":"EUVD-2026-95426","aliases":["CVE-2026-78669"],"title":"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.","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":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"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","https://pkg.go.dev/vuln/GO-2026-6611"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95426","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 8, 2026, 10:53:59 PM","dateUpdated":"Oct 9, 2026, 4:32:57 PM"},"relatedAdvisories":[{"id":"RHSA-2026:89041","title":"Red Hat Security Advisory: Red Hat OpenShift Builds 1.9.2","vulnerabilityIds":["CVE-2026-33818","CVE-2026-39821","CVE-2026-40161","CVE-2026-40938","CVE-2026-46600","CVE-2026-56851","CVE-2026-56853","CVE-2026-56858","CVE-2026-56859","CVE-2026-56860","CVE-2026-56862","CVE-2026-78667","CVE-2026-78669","CVE-2026-84304","CVE-2026-84445","CVE-2026-97031","CVE-2026-111943"]},{"id":"openSUSE-SU-2026:12112-1","title":"rclone-1.75.2-1.1 on GA media","vulnerabilityIds":["CVE-2026-56857","CVE-2026-56866","CVE-2026-78659","CVE-2026-78660","CVE-2026-78663","CVE-2026-78667","CVE-2026-78669","CVE-2026-84445","CVE-2026-94439","CVE-2026-94440","CVE-2026-94444","CVE-2026-94447","CVE-2026-94448","CVE-2026-97030","CVE-2026-97031","CVE-2026-97032"]},{"id":"RHSA-2026:89741","title":"Red Hat Security Advisory: rhc security update","vulnerabilityIds":["CVE-2026-78667","CVE-2026-78669","CVE-2026-97031","CVE-2026-111943"]},{"id":"RHSA-2026:90726","title":"Red Hat Security Advisory: rhc security update","vulnerabilityIds":["CVE-2024-9355","CVE-2024-45336","CVE-2025-68121","CVE-2026-27145","CVE-2026-32280","CVE-2026-32282","CVE-2026-32283","CVE-2026-33811","CVE-2026-33818","CVE-2026-39821","CVE-2026-42504","CVE-2026-56858","CVE-2026-56860","CVE-2026-56862","CVE-2026-78667","CVE-2026-78669","CVE-2026-97031","CVE-2026-111943"]},{"id":"RHSA-2026:89915","title":"Red Hat Security Advisory: rhc security update","vulnerabilityIds":["CVE-2026-78667","CVE-2026-78669","CVE-2026-97031","CVE-2026-111943"]},{"id":"openSUSE-SU-2026:12140-1","title":"azure-storage-azcopy-10.32.8-2.1 on GA media","vulnerabilityIds":["CVE-2026-78669"]},{"id":"RHSA-2026:87042","title":"Red Hat Security Advisory: golang security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-56866","CVE-2026-78659","CVE-2026-78660","CVE-2026-78663","CVE-2026-78667","CVE-2026-78669","CVE-2026-94439","CVE-2026-94440","CVE-2026-94444","CVE-2026-94447","CVE-2026-94448","CVE-2026-97030","CVE-2026-97031","CVE-2026-97032","CVE-2026-111943"]},{"id":"openSUSE-SU-2026:12152-1","title":"google-osconfig-agent-20261015.00-1.1 on GA media","vulnerabilityIds":["CVE-2026-61801","CVE-2026-78669","CVE-2026-95838"]},{"id":"openSUSE-SU-2026:12208-1","title":"amazon-cloudwatch-agent-1.300073.0-3.1 on GA media","vulnerabilityIds":["CVE-2026-78669","CVE-2026-89090"]},{"id":"RHSA-2026:92217","title":"Red Hat Security Advisory: rhc 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update","vulnerabilityIds":["CVE-2026-15307","CVE-2026-18660","CVE-2026-19203","CVE-2026-56853","CVE-2026-59646","CVE-2026-68497","CVE-2026-73619","CVE-2026-78667","CVE-2026-78669","CVE-2026-78677","CVE-2026-84445","CVE-2026-87819","CVE-2026-89407","CVE-2026-89425","CVE-2026-94440","CVE-2026-96640","CVE-2026-96643","CVE-2026-96778","CVE-2026-97031","CVE-2026-97687","CVE-2026-97689","CVE-2026-110856","CVE-2026-110857","CVE-2026-110858","CVE-2026-110859","CVE-2026-111497","CVE-2026-111943","CVE-2026-112390","CVE-2026-112391","CVE-2026-112392","CVE-2026-112393","CVE-2026-112397","CVE-2026-112398","CVE-2026-112399","CVE-2026-112400","CVE-2026-112402","CVE-2026-112403","CVE-2026-112404","CVE-2026-112405","CVE-2026-112406","CVE-2026-112892","CVE-2026-112893","CVE-2026-112894","CVE-2026-112895","CVE-2026-112896","CVE-2026-112897","CVE-2026-114145"]},{"id":"openSUSE-SU-2026:22222-1","title":"Security update for gh","vulnerabilityIds":["CVE-2026-78669"]},{"id":"RHSA-2026:92372","title":"Red Hat 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3.1.14","vulnerabilityIds":["CVE-2026-56857","CVE-2026-56866","CVE-2026-78663","CVE-2026-78667","CVE-2026-78669","CVE-2026-94439","CVE-2026-94440","CVE-2026-94448","CVE-2026-97030","CVE-2026-97031","CVE-2026-97032","CVE-2026-111943"]},{"id":"RHSA-2026:89740","title":"Red Hat Security Advisory: rhc security update","vulnerabilityIds":["CVE-2026-78667","CVE-2026-78669","CVE-2026-97031","CVE-2026-111943"]},{"id":"RHSA-2026:92516","title":"Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.4.4","vulnerabilityIds":["CVE-2026-56857","CVE-2026-56866","CVE-2026-78663","CVE-2026-78667","CVE-2026-78669","CVE-2026-94439","CVE-2026-94440","CVE-2026-94448","CVE-2026-97030","CVE-2026-97031","CVE-2026-97032","CVE-2026-111943"]},{"id":"openSUSE-SU-2026:22201-1","title":"Security update for hauler","vulnerabilityIds":["CVE-2026-114437","CVE-2026-78669"]},{"id":"openSUSE-SU-2026:12163-1","title":"gh-2.102.0-1.1 on GA media","vulnerabilityIds":["CVE-2026-41178","CVE-2026-59831","CVE-2026-63209","CVE-2026-72924","CVE-2026-78669","CVE-2026-84304","CVE-2026-84445"]},{"id":"RHSA-2026:91587","title":"Red Hat Security Advisory: osbuild-composer security update","vulnerabilityIds":["CVE-2026-42504","CVE-2026-78667","CVE-2026-78669","CVE-2026-84445","CVE-2026-94440","CVE-2026-97031","CVE-2026-111943"]},{"id":"RHSA-2026:88394","title":"Red Hat Security Advisory: grafana-pcp security update","vulnerabilityIds":["CVE-2024-45336","CVE-2025-22866","CVE-2025-68121","CVE-2026-27137","CVE-2026-32280","CVE-2026-32281","CVE-2026-32282","CVE-2026-32283","CVE-2026-33810","CVE-2026-33818","CVE-2026-39821","CVE-2026-42504","CVE-2026-56853","CVE-2026-56858","CVE-2026-56860","CVE-2026-56862","CVE-2026-78667","CVE-2026-78669","CVE-2026-94440","CVE-2026-97031","CVE-2026-111943"]},{"id":"openSUSE-SU-2026:12242-1","title":"kubevirt1.9-container-disk-1.9.1-2.1 on GA media","vulnerabilityIds":["CVE-2026-78659","CVE-2026-78660","CVE-2026-78669"]},{"id":"RHSA-2026:86203","title":"Red Hat Security Advisory: go-toolset:rhel8 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-56866","CVE-2026-78659","CVE-2026-78660","CVE-2026-78663","CVE-2026-78667","CVE-2026-78669","CVE-2026-94439","CVE-2026-94440","CVE-2026-94444","CVE-2026-94447","CVE-2026-94448","CVE-2026-97030","CVE-2026-97031","CVE-2026-97032","CVE-2026-111943"]},{"id":"RHSA-2026:87245","title":"Red Hat Security Advisory: go-toolset:rhel8 security, bug fix, and enhancement 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go1.26","vulnerabilityIds":["CVE-2026-111943","CVE-2026-78663","CVE-2026-78669"]},{"id":"RHSA-2026:90332","title":"Red Hat Security Advisory: RHOSO 18.0 os-diff security update","vulnerabilityIds":["CVE-2026-27145","CVE-2026-33818","CVE-2026-42504","CVE-2026-56853","CVE-2026-56858","CVE-2026-56860","CVE-2026-56862","CVE-2026-78667","CVE-2026-78669","CVE-2026-94440","CVE-2026-97031","CVE-2026-111943"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. 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