CVE-2026-46510

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Source

https://cve.org/CVERecord?id=CVE-2026-46510

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46510.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-46510

Aliases

GHSA-m2hg-wjq3-28wq

Published

2026-05-29T13:40:22.772Z

Modified

2026-07-15T01:49:21.028895440Z

Severity

8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L CVSS Calculator

Summary

Prototype pollution in form-data-objectizer via bracket-notation form keys

Details

form-data-objectizer converts FormData to object. Prior to 1.0.1, form-data-objectizer walks bracket-notation form keys (e.g. name[sub]) into nested objects without filtering proto, constructor, or prototype. A single HTTP form field whose name starts with proto[...] causes the library to mutate Object.prototype, which is a prototype pollution primitive of the entire Node.js process. This vulnerability is fixed in 1.0.1.

Database specific

{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46510.json",
    "cwe_ids": [
        "CWE-1321"
    ],
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "1.0.1"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/kaspernj/form-data-objectizer

Affected ranges

Type

GIT

Repo

https://github.com/kaspernj/form-data-objectizer

Events

Introduced

Fixed

7c54b99408e6e9cd6533b7245bf197dadc2a2dbc

Database specific

{
    "source": "REFERENCES"
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46510.json"