Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/43643?format=api
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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/43643?format=api",
    "vulnerability_id": "VCID-yrbr-vnty-ebfr",
    "summary": "Improper Input Validation\nhttp/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.",
    "aliases": [
        {
            "alias": "CVE-2013-4366"
        },
        {
            "alias": "GHSA-pqwh-44jj-p5rm"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/98644?format=api",
            "purl": "pkg:deb/debian/httpcomponents-client@4.3.2-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/httpcomponents-client@4.3.2-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/6097?format=api",
            "purl": "pkg:deb/debian/httpcomponents-client@4.3.5-2",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6amm-pfu5-6bf4"
                },
                {
                    "vulnerability": "VCID-x63h-y2jy-pyaz"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/httpcomponents-client@4.3.5-2"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/98643?format=api",
            "purl": "pkg:deb/debian/httpcomponents-client@4.5.13-2?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/httpcomponents-client@4.5.13-2%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/98641?format=api",
            "purl": "pkg:deb/debian/httpcomponents-client@4.5.14-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/httpcomponents-client@4.5.14-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/62652?format=api",
            "purl": "pkg:maven/org.apache.httpcomponents/httpclient@4.3.1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6amm-pfu5-6bf4"
                },
                {
                    "vulnerability": "VCID-mkuu-7x6y-7kc6"
                },
                {
                    "vulnerability": "VCID-x63h-y2jy-pyaz"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.httpcomponents/httpclient@4.3.1"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/6095?format=api",
            "purl": "pkg:deb/debian/httpcomponents-client@4.0.1-1squeeze1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-318s-st8t-wke2"
                },
                {
                    "vulnerability": "VCID-6amm-pfu5-6bf4"
                },
                {
                    "vulnerability": "VCID-mkuu-7x6y-7kc6"
                },
                {
                    "vulnerability": "VCID-x63h-y2jy-pyaz"
                },
                {
                    "vulnerability": "VCID-yrbr-vnty-ebfr"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/httpcomponents-client@4.0.1-1squeeze1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/6096?format=api",
            "purl": "pkg:deb/debian/httpcomponents-client@4.1.1-2%2Bdeb7u1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6amm-pfu5-6bf4"
                },
                {
                    "vulnerability": "VCID-mkuu-7x6y-7kc6"
                },
                {
                    "vulnerability": "VCID-x63h-y2jy-pyaz"
                },
                {
                    "vulnerability": "VCID-yrbr-vnty-ebfr"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/httpcomponents-client@4.1.1-2%252Bdeb7u1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/62651?format=api",
            "purl": "pkg:maven/org.apache.httpcomponents/httpclient@4.3",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6amm-pfu5-6bf4"
                },
                {
                    "vulnerability": "VCID-mkuu-7x6y-7kc6"
                },
                {
                    "vulnerability": "VCID-x63h-y2jy-pyaz"
                },
                {
                    "vulnerability": "VCID-yrbr-vnty-ebfr"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/org.apache.httpcomponents/httpclient@4.3"
        }
    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2013-4366",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.0129",
                    "scoring_system": "epss",
                    "scoring_elements": "0.80029",
                    "published_at": "2026-06-07T12:55:00Z"
                },
                {
                    "value": "0.0129",
                    "scoring_system": "epss",
                    "scoring_elements": "0.80004",
                    "published_at": "2026-06-04T12:55:00Z"
                },
                {
                    "value": "0.0129",
                    "scoring_system": "epss",
                    "scoring_elements": "0.80035",
                    "published_at": "2026-06-06T12:55:00Z"
                },
                {
                    "value": "0.0129",
                    "scoring_system": "epss",
                    "scoring_elements": "0.8003",
                    "published_at": "2026-06-05T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2013-4366"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4366",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4366"
        },
        {
            "reference_url": "https://github.com/apache/httpcomponents-client/commit/08140864e3e4c0994e094c4cf0507932baf6a66",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "9.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "CRITICAL",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/apache/httpcomponents-client/commit/08140864e3e4c0994e094c4cf0507932baf6a66"
        },
        {
            "reference_url": "http://svn.apache.org/r1528614",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "9.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "CRITICAL",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "http://svn.apache.org/r1528614"
        },
        {
            "reference_url": "http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.3.x.txt",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "9.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "CRITICAL",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.3.x.txt"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4366",
            "reference_id": "CVE-2013-4366",
            "reference_type": "",
            "scores": [
                {
                    "value": "9.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "CRITICAL",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4366"
        },
        {
            "reference_url": "https://github.com/advisories/GHSA-pqwh-44jj-p5rm",
            "reference_id": "GHSA-pqwh-44jj-p5rm",
            "reference_type": "",
            "scores": [
                {
                    "value": "CRITICAL",
                    "scoring_system": "cvssv3.1_qr",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/advisories/GHSA-pqwh-44jj-p5rm"
        }
    ],
    "weaknesses": [
        {
            "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."
        },
        {
            "cwe_id": 20,
            "name": "Improper Input Validation",
            "description": "The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly."
        },
        {
            "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."
        }
    ],
    "exploits": [],
    "severity_range_score": "9.0 - 10.0",
    "exploitability": "0.5",
    "weighted_severity": "9.0",
    "risk_score": 4.5,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-yrbr-vnty-ebfr"
}