{"id":"CVE-2026-97031","revision":"e6fb8d486ec74b2eb2c9b156d3e44bd0","records":[{"revision":"e6fb8d486ec74b2eb2c9b156d3e44bd0","observedAt":"2026-10-25T16:19:28.255+00:00","statement":{"source":"nvd","id":"CVE-2026-97031","aliases":[],"title":"Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject thes…","description":"Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.","state":0,"publishedAt":"2026-10-08T23:17:06.037+00:00","modifiedAt":"2026-10-09T16:35:35.9+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:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://go.dev/cl/847312","https://go.dev/issue/81855","https://groups.google.com/g/golang-announce/c/U2fTuyDJznI","https://pkg.go.dev/vuln/GO-2026-6607"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97031","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-405"],"productCriteria":[],"sourceDates":{"published":"2026-10-08T23:17:06.037","lastModified":"2026-10-09T16:35:35.900"},"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-2026-97031","identifiers":["CVE-2026-97031"]},"retained":false,"historicalAffected":[]}],"coverage":[]}