Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/28515?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/28515?format=api",
    "vulnerability_id": "VCID-73r3-6fbf-kqcu",
    "summary": "",
    "aliases": [
        {
            "alias": "CVE-2026-40021"
        },
        {
            "alias": "GHSA-4f7c-pmjv-c25w"
        }
    ],
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            "url": "http://public2.vulnerablecode.io/api/packages/1078798?format=api",
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            "url": "http://public2.vulnerablecode.io/api/packages/459825?format=api",
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            "affected_by_vulnerabilities": [
                {
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            "url": "http://public2.vulnerablecode.io/api/packages/459827?format=api",
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            "affected_by_vulnerabilities": [
                {
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            "url": "http://public2.vulnerablecode.io/api/packages/459828?format=api",
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            "affected_by_vulnerabilities": [
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    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-40021",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00285",
                    "scoring_system": "epss",
                    "scoring_elements": "0.52347",
                    "published_at": "2026-06-11T12:55:00Z"
                },
                {
                    "value": "0.00285",
                    "scoring_system": "epss",
                    "scoring_elements": "0.52472",
                    "published_at": "2026-06-14T12:55:00Z"
                },
                {
                    "value": "0.00285",
                    "scoring_system": "epss",
                    "scoring_elements": "0.52489",
                    "published_at": "2026-06-13T12:55:00Z"
                },
                {
                    "value": "0.00285",
                    "scoring_system": "epss",
                    "scoring_elements": "0.52476",
                    "published_at": "2026-06-12T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-40021"
        },
        {
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            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-40021"
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        {
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            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "3.7",
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                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
                }
            ],
            "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"
        },
        {
            "reference_url": "https://github.com/apache/logging-log4net",
            "reference_id": "",
            "reference_type": "",
            "scores": [
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                    "value": "5.3",
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                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "value": "6.3",
                    "scoring_system": "cvssv4",
                    "scoring_elements": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/apache/logging-log4net"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40021",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "value": "6.3",
                    "scoring_system": "cvssv4",
                    "scoring_elements": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40021"
        },
        {
            "reference_url": "http://www.openwall.com/lists/oss-security/2026/04/10/11",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
                },
                {
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                },
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                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
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            "url": "http://www.openwall.com/lists/oss-security/2026/04/10/11"
        },
        {
            "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1133360",
            "reference_id": "1133360",
            "reference_type": "",
            "scores": [],
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        },
        {
            "reference_url": "https://github.com/apache/logging-log4net/pull/280",
            "reference_id": "280",
            "reference_type": "",
            "scores": [
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        },
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    "weaknesses": [
        {
            "cwe_id": 116,
            "name": "Improper Encoding or Escaping of Output",
            "description": "The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved."
        },
        {
            "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."
        },
        {
            "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."
        }
    ],
    "exploits": [],
    "severity_range_score": "3.7 - 6.9",
    "exploitability": "0.5",
    "weighted_severity": "6.2",
    "risk_score": 3.1,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-73r3-6fbf-kqcu"
}