{"id":"CVE-2026-115482","revision":"c19a4c88ad0e4092800367196f252ec7","records":[{"revision":"c19a4c88ad0e4092800367196f252ec7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-115482","aliases":[],"title":"In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to header_out_dynamic_entry …","description":"In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to header_out_dynamic_entry and es_max_header_list_size.","state":0,"publishedAt":"2026-10-22T15:07:30.961+00:00","modifiedAt":"2026-10-22T19:00:31.416+00:00","affected":[{"ecosystem":"Vendor product","name":"lsquic","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"lsquic\",\n                    \"vendor\": \"litespeedtech\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"4.9.0\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"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":"HIGH"}],"references":["https://github.com/litespeedtech/lsquic/pull/666","https://github.com/litespeedtech/lsquic/compare/v4.8.2...v4.9.0","https://foxio.io/blog/header-accordions-qpack-amplification-attacks-against-http-3-servers"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115482","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115482","identifiers":["CVE-2026-115482"]},"retained":false,"historicalAffected":[]}],"coverage":[]}