{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33814","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","state":"PUBLISHED","assignerShortName":"Go","dateReserved":"2026-03-23T20:35:32.814Z","datePublished":"2026-05-07T19:41:17.631Z","dateUpdated":"2026-05-08T18:01:02.989Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","shortName":"Go","dateUpdated":"2026-05-07T19:41:17.631Z"},"title":"Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net","descriptions":[{"lang":"en","value":"When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0."}],"affected":[{"vendor":"golang.org/x/net","product":"golang.org/x/net/http2","collectionURL":"https://pkg.go.dev","packageName":"golang.org/x/net/http2","versions":[{"version":"0","lessThan":"0.53.0","status":"affected","versionType":"semver"}],"programRoutines":[{"name":"clientConnReadLoop.processSettingsNoWrite"},{"name":"Transport.NewClientConn"},{"name":"Transport.RoundTrip"},{"name":"Transport.RoundTripOpt"},{"name":"clientConnPool.GetClientConn"},{"name":"noDialClientConnPool.GetClientConn"},{"name":"noDialH2RoundTripper.NewClientConn"},{"name":"noDialH2RoundTripper.RoundTrip"},{"name":"unencryptedTransport.RoundTrip"}],"defaultStatus":"unaffected"},{"vendor":"Go standard library","product":"net/http","collectionURL":"https://pkg.go.dev","packageName":"net/http","versions":[{"version":"0","lessThan":"1.25.10","status":"affected","versionType":"semver"},{"version":"1.26.0-0","lessThan":"1.26.3","status":"affected","versionType":"semver"}],"programRoutines":[{"name":"http2clientConnReadLoop.processSettingsNoWrite"},{"name":"Client.CloseIdleConnections"},{"name":"Client.Do"},{"name":"Client.Get"},{"name":"Client.Head"},{"name":"Client.Post"},{"name":"Client.PostForm"},{"name":"ClientConn.Close"},{"name":"ClientConn.RoundTrip"},{"name":"Get"},{"name":"Head"},{"name":"Post"},{"name":"PostForm"},{"name":"Transport.CloseIdleConnections"},{"name":"Transport.NewClientConn"},{"name":"Transport.RoundTrip"},{"name":"http1ClientConn.Close"},{"name":"http1ClientConn.RoundTrip"},{"name":"http2Transport.NewClientConn"},{"name":"http2Transport.RoundTrip"},{"name":"http2Transport.RoundTripOpt"},{"name":"http2clientConnPool.GetClientConn"},{"name":"http2noDialClientConnPool.GetClientConn"},{"name":"http2noDialH2RoundTripper.NewClientConn"},{"name":"http2noDialH2RoundTripper.RoundTrip"},{"name":"http2unencryptedTransport.RoundTrip"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')"}]}],"references":[{"url":"https://go.dev/cl/761581"},{"url":"https://go.dev/cl/761640"},{"url":"https://go.dev/issue/78476"},{"url":"https://groups.google.com/g/golang-announce/c/qcCIEXso47M"},{"url":"https://pkg.go.dev/vuln/GO-2026-4918"}],"credits":[{"lang":"en","value":"Marwan Atia (marwansamir688@gmail.com)"}]},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-08T18:00:53.951676Z","id":"CVE-2026-33814","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-08T18:01:02.989Z"}}]}}