Package Instance

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{
    "url": "http://public2.vulnerablecode.io/api/packages/926351?format=api",
    "purl": "pkg:deb/debian/knot-resolver@5.6.0-1?distro=trixie",
    "type": "deb",
    "namespace": "debian",
    "name": "knot-resolver",
    "version": "5.6.0-1",
    "qualifiers": {
        "distro": "trixie"
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    "subpath": "",
    "is_vulnerable": false,
    "next_non_vulnerable_version": "5.6.0-1+deb12u1",
    "latest_non_vulnerable_version": "6.2.0-2",
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    "fixing_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/95457?format=api",
            "vulnerability_id": "VCID-ps4g-f1q9-wqhm",
            "summary": "Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response.",
            "references": [
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-26249",
                    "reference_id": "",
                    "reference_type": "",
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                            "published_at": "2026-04-16T12:55:00Z"
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                            "scoring_elements": "0.60021",
                            "published_at": "2026-04-18T12:55:00Z"
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                            "scoring_elements": "0.60007",
                            "published_at": "2026-04-21T12:55:00Z"
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                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-26249"
                },
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                    "reference_id": "",
                    "reference_type": "",
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                    "reference_id": "2023-01-26-knot-resolver-5.6.0.html",
                    "reference_type": "",
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                            "value": "7.5",
                            "scoring_system": "cvssv3.1",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                        },
                        {
                            "value": "Track",
                            "scoring_system": "ssvc",
                            "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-03-14T18:32:21Z/"
                        }
                    ],
                    "url": "https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html"
                }
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                {
                    "url": "http://public2.vulnerablecode.io/api/packages/926340?format=api",
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                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
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                },
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/926344?format=api",
                    "purl": "pkg:deb/debian/knot-resolver@5.7.5-1?distro=trixie",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@5.7.5-1%3Fdistro=trixie"
                },
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/926343?format=api",
                    "purl": "pkg:deb/debian/knot-resolver@6.2.0-2?distro=trixie",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@6.2.0-2%3Fdistro=trixie"
                }
            ],
            "aliases": [
                "CVE-2023-26249"
            ],
            "risk_score": 1.9,
            "exploitability": "0.5",
            "weighted_severity": "3.8",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ps4g-f1q9-wqhm"
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    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@5.6.0-1%3Fdistro=trixie"
}