{"id":"CVE-2026-94439","revision":"4ed6425edb8e4a2d9ba0829925133f24","records":[{"revision":"4ed6425edb8e4a2d9ba0829925133f24","observedAt":"2026-10-25T16:19:28.255+00:00","statement":{"source":"nvd","id":"CVE-2026-94439","aliases":[],"title":"When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CO…","description":"When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.","state":0,"publishedAt":"2026-10-08T23:17:04.76+00:00","modifiedAt":"2026-10-09T17:16:50.703+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"}],"references":["https://go.dev/cl/847311","https://go.dev/issue/81744","https://groups.google.com/g/golang-announce/c/U2fTuyDJznI","https://pkg.go.dev/vuln/GO-2026-6613"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94439","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-444"],"productCriteria":[],"sourceDates":{"published":"2026-10-08T23:17:04.760","lastModified":"2026-10-09T17:16:50.703"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-94439","identifiers":["CVE-2026-94439"]},"retained":false,"historicalAffected":[]}],"coverage":[]}