Package Instance

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{
    "url": "http://public2.vulnerablecode.io/api/packages/531914?format=api",
    "purl": "pkg:npm/merge-change@1.5.1",
    "type": "npm",
    "namespace": "",
    "name": "merge-change",
    "version": "1.5.1",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": null,
    "latest_non_vulnerable_version": null,
    "affected_by_vulnerabilities": [
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            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/41300?format=api",
            "vulnerability_id": "VCID-1s4k-seu8-4yee",
            "summary": "Improperly Controlled Modification of Dynamically-Determined Object Attributes\nAll versions of package merge-change is vulnerable to Prototype Pollution via the `utils.set` function.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-23421",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
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                            "published_at": "2026-06-07T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-23421"
                },
                {
                    "reference_url": "https://github.com/VladimirShestakov/merge-change",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
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                            "value": "9.8",
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                        },
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                            "value": "CRITICAL",
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                            "scoring_elements": ""
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                    ],
                    "url": "https://github.com/VladimirShestakov/merge-change"
                },
                {
                    "reference_url": "https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js#L89-L123",
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                            "value": "CRITICAL",
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                    "url": "https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js#L89-L123"
                },
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                    "reference_id": "",
                    "reference_type": "",
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                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://snyk.io/vuln/SNYK-JS-MERGECHANGE-1310985"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23421",
                    "reference_id": "CVE-2021-23421",
                    "reference_type": "",
                    "scores": [
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                            "value": "9.8",
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                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23421"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-f9cv-665r-275h",
                    "reference_id": "GHSA-f9cv-665r-275h",
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            "fixed_packages": [],
            "aliases": [
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                "GHSA-f9cv-665r-275h"
            ],
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            "exploitability": "0.5",
            "weighted_severity": "9.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-1s4k-seu8-4yee"
        }
    ],
    "fixing_vulnerabilities": [],
    "risk_score": "4.5",
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/merge-change@1.5.1"
}