CVE-2026-106547

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Source

https://cve.org/CVERecord?id=CVE-2026-106547

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106547.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-106547

Downstream

Published

2026-10-06T20:14:41Z

Modified

2026-10-08T02:50:37Z

Severity

8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

HDF5 heap buffer overflow in H5VM_array_fill via crafted fill-value metadata

Details

A heap-based buffer overflow in H5VM_array_fill() in src/H5VM.c in HDF5 before 2.2.0 lets a remote attacker cause an application crash and possibly execute arbitrary code with a crafted HDF5 file. When a dataset's unallocated chunks are read, H5D__fill_init() fills the fill-value buffer from datatype and dataspace metadata in the file. If that metadata is inconsistent with the buffer's allocated size, the write goes past the end of the buffer. The attacker can control the content written through the fill value stored in the file.

Database specific

{
    "cna_assigner": "HDFG",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106547.json"
}

References

Affected packages

Git / github.com/hdfgroup/hdf5

Affected ranges

Type

GIT

Repo

https://github.com/hdfgroup/hdf5

Events

Introduced

3ac6af666cd304b958631013195413b936a9aac4

Fixed

49df1b4e5ca4108d56e80f06321a749da1535268

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "1.10.0"
        },
        {
            "fixed": "2.2.0"
        },
        {
            "introduced": "HDF5"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-106547.json"