CVE-2026-19029

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Source

https://cve.org/CVERecord?id=CVE-2026-19029

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19029.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-19029

Downstream

Published

2026-10-06T20:01:36Z

Modified

2026-10-09T02:30:35Z

Severity

6.8 (Medium) CVSS_V4 - 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 CVSS Calculator

Summary

HDF5 scale-offset filter heap buffer over-read via crafted chunk

Details

A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets an 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 holds that many bytes. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message.

Database specific

{
    "cna_assigner": "HDFG",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19029.json"
}

References

Affected packages

Git / github.com/hdfgroup/hdf5

Affected ranges

Type

GIT

Repo

https://github.com/hdfgroup/hdf5

Events

Introduced

577c192518598c7e2945683655feffcdbdf5a91b

Fixed

49df1b4e5ca4108d56e80f06321a749da1535268

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.2.0"
        },
        {
            "introduced": "HDF5"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19029.json"