Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/5425?format=api
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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5425?format=api",
    "vulnerability_id": "VCID-8h7y-8hwq-bqgj",
    "summary": "insufficient validation",
    "aliases": [
        {
            "alias": "CVE-2021-3672"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/3141?format=api",
            "purl": "pkg:alpm/archlinux/c-ares@1.17.2-1",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/c-ares@1.17.2-1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/58615?format=api",
            "purl": "pkg:conan/c-ares@1.17.2",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:conan/c-ares@1.17.2"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/3140?format=api",
            "purl": "pkg:alpm/archlinux/c-ares@1.17.1-1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-8h7y-8hwq-bqgj"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/c-ares@1.17.1-1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/58614?format=api",
            "purl": "pkg:conan/c-ares@1.0.0",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-8h7y-8hwq-bqgj"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:conan/c-ares@1.0.0"
        }
    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-3672",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00044",
                    "scoring_system": "epss",
                    "scoring_elements": "0.13772",
                    "published_at": "2026-05-30T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-3672"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1988342",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1988342"
        },
        {
            "reference_url": "https://c-ares.haxx.se/adv_20210810.html",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://c-ares.haxx.se/adv_20210810.html"
        },
        {
            "reference_url": "https://security.archlinux.org/ASA-202108-13",
            "reference_id": "ASA-202108-13",
            "reference_type": "",
            "scores": [],
            "url": "https://security.archlinux.org/ASA-202108-13"
        },
        {
            "reference_url": "https://security.archlinux.org/AVG-2268",
            "reference_id": "AVG-2268",
            "reference_type": "",
            "scores": [
                {
                    "value": "Medium",
                    "scoring_system": "archlinux",
                    "scoring_elements": ""
                }
            ],
            "url": "https://security.archlinux.org/AVG-2268"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3672",
            "reference_id": "CVE-2021-3672",
            "reference_type": "",
            "scores": [],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3672"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 1035,
            "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017."
        },
        {
            "cwe_id": 79,
            "name": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
            "description": "The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users."
        },
        {
            "cwe_id": 937,
            "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013."
        }
    ],
    "exploits": [],
    "severity_range_score": "4.0 - 6.9",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-8h7y-8hwq-bqgj"
}