CVE-2026-19029

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
2026-10-28T02:30:45Z
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
Database specific
Show details
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.2.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "introduced":  "5"
                },
                {
                    "last_affected":  "2.2.0"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Database specific

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