Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/62213?format=api
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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/62213?format=api",
    "vulnerability_id": "VCID-4qm3-nbsk-73he",
    "summary": "Multiple vulnerabilities have been found in Ruby, allowing\n    context-dependent attackers to cause a Denial of Service condition.",
    "aliases": [
        {
            "alias": "CVE-2011-4815"
        },
        {
            "alias": "GHSA-xpr8-vpc7-7vfc"
        },
        {
            "alias": "OSV-78118"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/85815?format=api",
            "purl": "pkg:ebuild/dev-lang/ruby@2.0.0_p598",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/dev-lang/ruby@2.0.0_p598"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/126420?format=api",
            "purl": "pkg:rpm/redhat/ruby@1.8.1-18?arch=el4",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-4qm3-nbsk-73he"
                },
                {
                    "vulnerability": "VCID-6dxj-me8k-qfak"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/ruby@1.8.1-18%3Farch=el4"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/126419?format=api",
            "purl": "pkg:rpm/redhat/ruby@1.8.5-22.el5_7?arch=1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-4qm3-nbsk-73he"
                },
                {
                    "vulnerability": "VCID-6dxj-me8k-qfak"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/ruby@1.8.5-22.el5_7%3Farch=1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/126421?format=api",
            "purl": "pkg:rpm/redhat/ruby@1.8.7.352-4?arch=el6_2",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-4qm3-nbsk-73he"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/ruby@1.8.7.352-4%3Farch=el6_2"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1072974?format=api",
            "purl": "pkg:rpm/redhat/ruby3-3-main@3.3.10-23.1?arch=hum1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-1vp9-6q85-5ffv"
                },
                {
                    "vulnerability": "VCID-2sv2-6snv-2bd3"
                },
                {
                    "vulnerability": "VCID-4qm3-nbsk-73he"
                },
                {
                    "vulnerability": "VCID-4yvc-uzev-wua4"
                },
                {
                    "vulnerability": "VCID-5xez-skrj-b3h4"
                },
                {
                    "vulnerability": "VCID-91b7-xx8t-rqhr"
                },
                {
                    "vulnerability": "VCID-9x9w-2k98-wydm"
                },
                {
                    "vulnerability": "VCID-a15m-bcma-vfa7"
                },
                {
                    "vulnerability": "VCID-arjz-geyr-q7e3"
                },
                {
                    "vulnerability": "VCID-bdar-wgfe-qqgf"
                },
                {
                    "vulnerability": "VCID-ea13-mua4-1fb9"
                },
                {
                    "vulnerability": "VCID-fw7k-88kf-1kgg"
                },
                {
                    "vulnerability": "VCID-g7ju-q41v-wyhd"
                },
                {
                    "vulnerability": "VCID-jj3a-fpsa-a7at"
                },
                {
                    "vulnerability": "VCID-pegr-f5mh-ekdz"
                },
                {
                    "vulnerability": "VCID-qyz5-zmnt-qucy"
                },
                {
                    "vulnerability": "VCID-rwak-wvuw-qbcg"
                },
                {
                    "vulnerability": "VCID-sf98-mryd-yfb3"
                },
                {
                    "vulnerability": "VCID-sfzh-hn56-hbak"
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                {
                    "vulnerability": "VCID-t9y5-hd9b-bkc4"
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                {
                    "vulnerability": "VCID-vcz9-dvf4-47am"
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                {
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                {
                    "vulnerability": "VCID-x126-x9qm-e7d3"
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                {
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                    "vulnerability": "VCID-y56y-5am7-wkhr"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/ruby3-3-main@3.3.10-23.1%3Farch=hum1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1072973?format=api",
            "purl": "pkg:rpm/redhat/ruby3-4-main@3.4.8-31.1?arch=hum1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-1vp9-6q85-5ffv"
                },
                {
                    "vulnerability": "VCID-2sv2-6snv-2bd3"
                },
                {
                    "vulnerability": "VCID-4qm3-nbsk-73he"
                },
                {
                    "vulnerability": "VCID-4yvc-uzev-wua4"
                },
                {
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                {
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                },
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                },
                {
                    "vulnerability": "VCID-a15m-bcma-vfa7"
                },
                {
                    "vulnerability": "VCID-arjz-geyr-q7e3"
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                {
                    "vulnerability": "VCID-bdar-wgfe-qqgf"
                },
                {
                    "vulnerability": "VCID-ea13-mua4-1fb9"
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                {
                    "vulnerability": "VCID-fw7k-88kf-1kgg"
                },
                {
                    "vulnerability": "VCID-g7ju-q41v-wyhd"
                },
                {
                    "vulnerability": "VCID-jj3a-fpsa-a7at"
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                {
                    "vulnerability": "VCID-pegr-f5mh-ekdz"
                },
                {
                    "vulnerability": "VCID-qyz5-zmnt-qucy"
                },
                {
                    "vulnerability": "VCID-rwak-wvuw-qbcg"
                },
                {
                    "vulnerability": "VCID-sf98-mryd-yfb3"
                },
                {
                    "vulnerability": "VCID-sfzh-hn56-hbak"
                },
                {
                    "vulnerability": "VCID-t9y5-hd9b-bkc4"
                },
                {
                    "vulnerability": "VCID-vcz9-dvf4-47am"
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                {
                    "vulnerability": "VCID-wzdf-d9fv-u3hh"
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                {
                    "vulnerability": "VCID-x126-x9qm-e7d3"
                },
                {
                    "vulnerability": "VCID-xkd6-jvma-skfk"
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                {
                    "vulnerability": "VCID-y56y-5am7-wkhr"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/ruby3-4-main@3.4.8-31.1%3Farch=hum1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1072972?format=api",
            "purl": "pkg:rpm/redhat/ruby4-0-main@4.0.0-33.3?arch=hum1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-1vp9-6q85-5ffv"
                },
                {
                    "vulnerability": "VCID-2sv2-6snv-2bd3"
                },
                {
                    "vulnerability": "VCID-4qm3-nbsk-73he"
                },
                {
                    "vulnerability": "VCID-4yvc-uzev-wua4"
                },
                {
                    "vulnerability": "VCID-5xez-skrj-b3h4"
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                {
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                {
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                {
                    "vulnerability": "VCID-rwak-wvuw-qbcg"
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                {
                    "vulnerability": "VCID-sf98-mryd-yfb3"
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                {
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                {
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                {
                    "vulnerability": "VCID-x126-x9qm-e7d3"
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                {
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                {
                    "vulnerability": "VCID-y56y-5am7-wkhr"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/ruby4-0-main@4.0.0-33.3%3Farch=hum1"
        }
    ],
    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2011-4815.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2011-4815.json"
        },
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2011-4815",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.01962",
                    "scoring_system": "epss",
                    "scoring_elements": "0.83445",
                    "published_at": "2026-04-01T12:55:00Z"
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                    "scoring_elements": "0.83458",
                    "published_at": "2026-04-02T12:55:00Z"
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                    "published_at": "2026-04-07T12:55:00Z"
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            "url": "https://api.first.org/data/v1/epss?cve=CVE-2011-4815"
        },
        {
            "reference_url": "https://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm-cve-2011-4815",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm-cve-2011-4815"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=750564",
            "reference_id": "750564",
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        {
            "reference_url": "https://security.gentoo.org/glsa/201412-27",
            "reference_id": "GLSA-201412-27",
            "reference_type": "",
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        {
            "reference_url": "https://access.redhat.com/errata/RHSA-2026:7305",
            "reference_id": "RHSA-2026:7305",
            "reference_type": "",
            "scores": [],
            "url": "https://access.redhat.com/errata/RHSA-2026:7305"
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        {
            "reference_url": "https://access.redhat.com/errata/RHSA-2026:7307",
            "reference_id": "RHSA-2026:7307",
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            "scores": [],
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        {
            "reference_url": "https://access.redhat.com/errata/RHSA-2026:8838",
            "reference_id": "RHSA-2026:8838",
            "reference_type": "",
            "scores": [],
            "url": "https://access.redhat.com/errata/RHSA-2026:8838"
        },
        {
            "reference_url": "https://usn.ubuntu.com/1377-1/",
            "reference_id": "USN-1377-1",
            "reference_type": "",
            "scores": [],
            "url": "https://usn.ubuntu.com/1377-1/"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": "0.5",
    "weighted_severity": "0.0",
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-4qm3-nbsk-73he"
}