{"id":"CVE-2026-19026","revision":null,"records":[{"revision":"aa9159c5c447492a8f3d78fff2ecf51e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-19026","aliases":[],"title":"Nbit filter NULL/short parameter-array dereference","description":"H5Z__filter_nbit in H5Znbit.c in HDF5 prior to 2.3.0 dereferences cd_values[0] through cd_values[4] without validating that cd_values is non-NULL or that cd_nelmts is at least 5, the fixed size of the filter's header. This allows attackers to cause a denial of service via a crafted HDF5 file that stores the N-Bit filter pipeline message with zero client-data values, opened and read via H5Dread, e.g. by the h5ls or h5repack tools.","state":0,"publishedAt":"2026-08-05T22:47:58.227+00:00","modifiedAt":"2026-10-06T20:32:13.006+00:00","affected":[{"ecosystem":"Vendor product","name":"HDF5","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"The HDF Group\",\n                    \"product\": \"HDF5\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"<=2.3.0\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6.8,"severity":"MEDIUM"}],"references":["https://github.com/HDFGroup/hdf5/pull/6497","https://github.com/HDFGroup/hdf5/issues/6489","https://github.com/HDFGroup/hdf5/issues/6492"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-19026","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-19026","identifiers":["CVE-2026-19026"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T13:57:33.6529555+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T13:57:33.6529555+00:00","lastSuccessAt":"2026-11-11T13:57:33.8241235+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:33.8241245+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-50d710c9a9d82d7c4f0dbc882eeaa04edd96b04262f8e1dc90b5d781e709dfb5","complete":true,"records":424128,"lastAttemptAt":"2026-11-11T13:57:32.8474715+00:00","lastSuccessAt":"2026-11-11T13:57:32.6784104+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:32.8474715+00:00","snapshotPublishedAt":"2026-11-11T13:27:44+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-f0a4583a21084daab8e852bf5d038b99","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T14:09:33.1310684+00:00","lastSuccessAt":"2026-11-11T14:09:33.127+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:09:33.127+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13569,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T13:57:33.6529555+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T13:57:33.6529555+00:00","lastSuccessAt":"2026-11-11T13:57:33.8250558+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:33.8250561+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. No reader inventory is sent.","generation":"enrichment-11785b13898646a1917b06b09d2df4a4","complete":true,"records":13753,"lastAttemptAt":"2026-11-11T13:57:34.9144807+00:00","lastSuccessAt":"2026-11-11T13:57:34.909+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:34.909+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T13:57:33.3950468+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:33.3950468+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T13:57:32.9057946+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:32.9057946+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T13:57:33.6132068+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:33.6132068+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-10cb353ca77c2a8069d6892d1d394d936b12c0add3c8749e2a1a03a1c5d50426","complete":true,"records":231666,"lastAttemptAt":"2026-11-11T13:57:33.0989698+00:00","lastSuccessAt":"2026-11-11T12:59:55.8981437+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:33.0989698+00:00","snapshotPublishedAt":"2026-11-11T12:32:53+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}