CVE-2026-120499

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-120499

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-120499.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-120499

Aliases

GHSA-vwvw-f6v4-w737

Published

2026-11-05T16:55:32Z

Modified

2026-11-05T21:32:21Z

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

h5io before 0.2.6 Arbitrary Code Execution via read_hdf5

Details

h5io before 0.2.6 contains a code injection vulnerability in read_hdf5() that allows attackers to execute arbitrary code by supplying a crafted HDF5 file. Attackers can store Python code in a node titled timezone, which _triage_read() passes to eval() with builtins reachable, name an arbitrary module in class or custom-object nodes that _import_class() imports, or place pickled objects in pd_dataframe or pd_series nodes that pandas deserializes on read.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-502",
        "CWE-95"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120499.json"
}

References

Affected packages

Git / github.com/h5io/h5io

Affected ranges

Type

GIT

Repo

https://github.com/h5io/h5io

Events

Introduced

3a823826032167c73efe88ac8ed080ced20a8e71

Fixed

afff1d61b31790f8c27e6c577bb7703eb1883ddd

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0.1.0"
                },
                {
                    "fixed": "0.2.6"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "fixed": "afff1d61b31790f8c27e6c577bb7703eb1883ddd"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

h5io-0.*

h5io-0.1.0

h5io-0.1.1

h5io-0.1.10

h5io-0.1.11

h5io-0.1.2

h5io-0.1.3

h5io-0.1.4

h5io-0.1.5

h5io-0.1.6

h5io-0.1.7

h5io-0.1.8

h5io-0.1.9

h5io-0.2.0

h5io-0.2.1

h5io-0.2.2

h5io-0.2.3

h5io-0.2.4

h5io-0.2.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-120499.json"