{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-19029", "assignerOrgId": "0253b833-3e77-4dfe-9d57-17db1a2f0a74", "state": "PUBLISHED", "assignerShortName": "HDFG", "dateReserved": "2026-08-05T22:14:42.476Z", "datePublished": "2026-10-06T20:01:36.340Z", "dateUpdated": "2026-10-06T20:01:36.340Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "0253b833-3e77-4dfe-9d57-17db1a2f0a74", "shortName": "HDFG", "dateUpdated": "2026-10-06T20:01:36.340Z"}, "title": "HDF5 scale-offset filter heap buffer over-read via crafted chunk", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds read", "type": "CWE"}]}], "affected": [{"vendor": "The HDF Group", "product": "HDF5", "modules": ["H5Z__filter_scaleoffset"], "versions": [{"status": "affected", "version": "< 2.2.0"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets a remote attacker cause a denial of service (application crash) with a crafted HDF5 file. When the stored minimum bits equal the full precision of the datatype, the decoder copies d_nelmts * size bytes from the compressed chunk without checking that the chunk is that large. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A heap-based buffer over-read in <code>H5Z__filter_scaleoffset()</code> in <code>src/H5Zscaleoffset.c</code> in HDF5 through 2.2.0 lets a remote attacker cause a denial of service (application crash) with a crafted HDF5 file. When the stored minimum bits equal the full precision of the datatype, the decoder copies <code>d_nelmts * size</code> bytes from the compressed chunk without checking that the chunk is that large. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message.&nbsp;"}]}], "references": [{"url": "https://github.com/HDFGroup/hdf5/pull/6718"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 6.8, "vectorString": "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"}}], "credits": [{"lang": "en", "value": "mtholmquist", "type": "reporter"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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