Vulnerability Instance

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/251096?format=api",
    "vulnerability_id": "VCID-uakh-v3bf-77cq",
    "summary": "Sylabs Singularity Enterprise through 1.6.2 has Insufficient Entropy in a nonce.",
    "aliases": [
        {
            "alias": "CVE-2021-33027"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/939439?format=api",
            "purl": "pkg:deb/debian/singularity-container@0?distro=sid",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/singularity-container@0%3Fdistro=sid"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/939435?format=api",
            "purl": "pkg:deb/debian/singularity-container@4.1.5%2Bds4-1?distro=sid",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/singularity-container@4.1.5%252Bds4-1%3Fdistro=sid"
        }
    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-33027",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69593",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69606",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69622",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.696",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69651",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69668",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.6969",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69675",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.6966",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69701",
                    "published_at": "2026-04-16T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.6971",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69691",
                    "published_at": "2026-04-21T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69743",
                    "published_at": "2026-04-24T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69752",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69758",
                    "published_at": "2026-04-29T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69732",
                    "published_at": "2026-05-05T12:55:00Z"
                },
                {
                    "value": "0.00607",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69776",
                    "published_at": "2026-05-07T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-33027"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-uakh-v3bf-77cq"
}