{"id":"CVE-2024-28182","revision":null,"records":[{"revision":"301189b53297428db45e8b9aa382dc4b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-28182","aliases":[],"title":"Reading unbounded number of HTTP/2 CONTINUATION frames to cause excessive CPU usage","description":"nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync.  This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream. There is no workaround for this vulnerability.","state":0,"publishedAt":"2024-04-04T14:41:36.587+00:00","modifiedAt":"2026-10-15T00:40:27.012+00:00","affected":[{"ecosystem":"Vendor product","name":"nghttp2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nghttp2\",\n                    \"product\": \"nghttp2\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.61.0\",\n                            \"status\": \"affected\"\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:L","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/nghttp2/nghttp2/security/advisories/GHSA-x6x3-gv8h-m57q","https://github.com/nghttp2/nghttp2/commit/00201ecd8f982da3b67d4f6868af72a1b03b14e0","https://github.com/nghttp2/nghttp2/commit/d71a4668c6bead55805d18810d633fbb98315af9","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AGOME6ZXJG7664IPQNVE3DL67E3YP3HY/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J6ZMXUGB66VAXDW5J6QSTHM5ET25FGSA/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXJO2EASHM2OQQLGVDY5ZSO7UVDVHTDK/","https://lists.debian.org/debian-lts-announce/2024/04/msg00026.html","http://www.openwall.com/lists/oss-security/2024/04/03/16"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-28182","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-28182","identifiers":["CVE-2024-28182"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-09T21:04:24.7578035+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T21:04:24.7578035+00:00","lastSuccessAt":"2026-11-09T21:04:28.0976125+00:00","error":null,"lastVerifiedAt":"2026-11-09T21:04:28.0976126+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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