GET

Vulnerability Instance

Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/246687?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/246687?format=api",
    "vulnerability_id": "VCID-by94-r8f3-z3fs",
    "summary": "Apache Traffic Server 9.0.0 is vulnerable to a remote DOS attack on the experimental Slicer plugin.",
    "aliases": [
        {
            "alias": "CVE-2021-27737"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/941471?format=api",
            "purl": "pkg:deb/debian/trafficserver@0?distro=sid",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/trafficserver@0%3Fdistro=sid"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/941472?format=api",
            "purl": "pkg:deb/debian/trafficserver@8.1.10%2Bds-1~deb11u1?distro=sid",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-4738-xk8n-hbac"
                },
                {
                    "vulnerability": "VCID-4hs3-be7k-9qe7"
                },
                {
                    "vulnerability": "VCID-4uhe-mtbx-nfdu"
                },
                {
                    "vulnerability": "VCID-5e1r-3jec-tkhp"
                },
                {
                    "vulnerability": "VCID-c62p-6ghw-j3dv"
                },
                {
                    "vulnerability": "VCID-eay7-63um-43e9"
                },
                {
                    "vulnerability": "VCID-kjah-am9e-xkev"
                },
                {
                    "vulnerability": "VCID-tevw-8dcp-yfh6"
                },
                {
                    "vulnerability": "VCID-ww3t-p3pq-gkhy"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/trafficserver@8.1.10%252Bds-1~deb11u1%3Fdistro=sid"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/941470?format=api",
            "purl": "pkg:deb/debian/trafficserver@9.2.5%2Bds-0%2Bdeb12u3?distro=sid",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/trafficserver@9.2.5%252Bds-0%252Bdeb12u3%3Fdistro=sid"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/941473?format=api",
            "purl": "pkg:deb/debian/trafficserver@9.2.5%2Bds-1?distro=sid",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-4738-xk8n-hbac"
                },
                {
                    "vulnerability": "VCID-4hs3-be7k-9qe7"
                },
                {
                    "vulnerability": "VCID-4uhe-mtbx-nfdu"
                },
                {
                    "vulnerability": "VCID-5e1r-3jec-tkhp"
                },
                {
                    "vulnerability": "VCID-c62p-6ghw-j3dv"
                },
                {
                    "vulnerability": "VCID-eay7-63um-43e9"
                },
                {
                    "vulnerability": "VCID-jabw-thzt-63bb"
                },
                {
                    "vulnerability": "VCID-kjah-am9e-xkev"
                },
                {
                    "vulnerability": "VCID-rcdg-j23x-xfbn"
                },
                {
                    "vulnerability": "VCID-tevw-8dcp-yfh6"
                },
                {
                    "vulnerability": "VCID-ww3t-p3pq-gkhy"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/trafficserver@9.2.5%252Bds-1%3Fdistro=sid"
        }
    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-27737",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.9279",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92797",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92802",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.928",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92809",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92813",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92818",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92817",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92828",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92832",
                    "published_at": "2026-04-21T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92839",
                    "published_at": "2026-04-24T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.9284",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92836",
                    "published_at": "2026-04-29T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92845",
                    "published_at": "2026-05-05T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92859",
                    "published_at": "2026-05-07T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.9287",
                    "published_at": "2026-05-09T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92874",
                    "published_at": "2026-05-11T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92881",
                    "published_at": "2026-05-12T12:55:00Z"
                },
                {
                    "value": "0.09467",
                    "scoring_system": "epss",
                    "scoring_elements": "0.92906",
                    "published_at": "2026-05-14T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-27737"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-by94-r8f3-z3fs"
}