Lookup for vulnerable packages by Package URL.

GET /api/packages/155756?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/packages/155756?format=api",
    "purl": "pkg:npm/node-expat@2.1.0",
    "type": "npm",
    "namespace": "",
    "name": "node-expat",
    "version": "2.1.0",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": true,
    "next_non_vulnerable_version": "2.3.0",
    "latest_non_vulnerable_version": "2.3.0",
    "affected_by_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/7425?format=api",
            "vulnerability_id": "VCID-6c4q-2my8-aqbc",
            "summary": "Uncontrolled Resource Consumption\nThe XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document.",
            "references": [
                {
                    "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5300.json",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5300.json"
                },
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2016-5300",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.8445",
                            "published_at": "2026-04-16T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.84437",
                            "published_at": "2026-04-11T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.84432",
                            "published_at": "2026-04-12T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.84428",
                            "published_at": "2026-04-13T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.84356",
                            "published_at": "2026-04-01T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.8437",
                            "published_at": "2026-04-02T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.8439",
                            "published_at": "2026-04-04T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.84393",
                            "published_at": "2026-04-07T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.84414",
                            "published_at": "2026-04-08T12:55:00Z"
                        },
                        {
                            "value": "0.02202",
                            "scoring_system": "epss",
                            "scoring_elements": "0.84419",
                            "published_at": "2026-04-09T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2016-5300"
                },
                {
                    "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6702",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6702"
                },
                {
                    "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5300",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5300"
                },
                {
                    "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "4.3",
                            "scoring_system": "cvssv2",
                            "scoring_elements": "AV:N/AC:M/Au:N/C:P/I:N/A:N"
                        },
                        {
                            "value": "6.5",
                            "scoring_system": "cvssv3",
                            "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                        }
                    ],
                    "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"
                },
                {
                    "reference_url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10365",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10365"
                },
                {
                    "reference_url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E"
                },
                {
                    "reference_url": "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E"
                },
                {
                    "reference_url": "https://source.android.com/security/bulletin/2016-11-01.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://source.android.com/security/bulletin/2016-11-01.html"
                },
                {
                    "reference_url": "https://www.tenable.com/security/tns-2016-20",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://www.tenable.com/security/tns-2016-20"
                },
                {
                    "reference_url": "http://www.debian.org/security/2016/dsa-3597",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "http://www.debian.org/security/2016/dsa-3597"
                },
                {
                    "reference_url": "http://www.openwall.com/lists/oss-security/2016/06/04/4",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "http://www.openwall.com/lists/oss-security/2016/06/04/4"
                },
                {
                    "reference_url": "http://www.openwall.com/lists/oss-security/2016/06/04/5",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "http://www.openwall.com/lists/oss-security/2016/06/04/5"
                },
                {
                    "reference_url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
                },
                {
                    "reference_url": "http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html"
                },
                {
                    "reference_url": "http://www.securityfocus.com/bid/91159",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "http://www.securityfocus.com/bid/91159"
                },
                {
                    "reference_url": "http://www.ubuntu.com/usn/USN-3010-1",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "http://www.ubuntu.com/usn/USN-3010-1"
                },
                {
                    "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1343085",
                    "reference_id": "1343085",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1343085"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
                    "reference_id": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                    "reference_id": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                    "reference_id": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:4.4.4:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:o:google:android:4.4.4:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:4.4.4:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:5.0.2:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:o:google:android:5.0.2:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:5.0.2:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*",
                    "reference_id": "cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5300",
                    "reference_id": "CVE-2016-5300",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.8",
                            "scoring_system": "cvssv2",
                            "scoring_elements": "AV:N/AC:L/Au:N/C:N/I:N/A:C"
                        },
                        {
                            "value": "7.5",
                            "scoring_system": "cvssv3",
                            "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5300"
                },
                {
                    "reference_url": "https://security.gentoo.org/glsa/201701-21",
                    "reference_id": "GLSA-201701-21",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://security.gentoo.org/glsa/201701-21"
                },
                {
                    "reference_url": "https://usn.ubuntu.com/3010-1/",
                    "reference_id": "USN-3010-1",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://usn.ubuntu.com/3010-1/"
                },
                {
                    "reference_url": "https://usn.ubuntu.com/3013-1/",
                    "reference_id": "USN-3013-1",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://usn.ubuntu.com/3013-1/"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/22616?format=api",
                    "purl": "pkg:npm/node-expat@2.2.0",
                    "is_vulnerable": true,
                    "affected_by_vulnerabilities": [
                        {
                            "vulnerability": "VCID-naf7-p1jf-z3ds"
                        }
                    ],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/node-expat@2.2.0"
                }
            ],
            "aliases": [
                "CVE-2016-5300"
            ],
            "risk_score": 3.5,
            "exploitability": "0.5",
            "weighted_severity": "7.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-6c4q-2my8-aqbc"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/10808?format=api",
            "vulnerability_id": "VCID-naf7-p1jf-z3ds",
            "summary": "Improper Restriction of XML External Entity Reference\n`libexpat` in Expat, XML input including XML names that contain many colons could make the XML parser consume a high amount of RAM and CPU resources while processing, leading to a possible denial-of-service attack.",
            "references": [
                {
                    "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20843.json",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "7.5",
                            "scoring_system": "cvssv3",
                            "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                        }
                    ],
                    "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-20843.json"
                },
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2018-20843",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.05584",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90308",
                            "published_at": "2026-04-12T12:55:00Z"
                        },
                        {
                            "value": "0.05584",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90301",
                            "published_at": "2026-04-09T12:55:00Z"
                        },
                        {
                            "value": "0.05584",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90318",
                            "published_at": "2026-04-16T12:55:00Z"
                        },
                        {
                            "value": "0.05584",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90302",
                            "published_at": "2026-04-13T12:55:00Z"
                        },
                        {
                            "value": "0.05584",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90309",
                            "published_at": "2026-04-11T12:55:00Z"
                        },
                        {
                            "value": "0.05686",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90359",
                            "published_at": "2026-04-01T12:55:00Z"
                        },
                        {
                            "value": "0.05686",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90392",
                            "published_at": "2026-04-08T12:55:00Z"
                        },
                        {
                            "value": "0.05686",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90378",
                            "published_at": "2026-04-07T12:55:00Z"
                        },
                        {
                            "value": "0.05686",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90374",
                            "published_at": "2026-04-04T12:55:00Z"
                        },
                        {
                            "value": "0.05686",
                            "scoring_system": "epss",
                            "scoring_elements": "0.90361",
                            "published_at": "2026-04-02T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2018-20843"
                },
                {
                    "reference_url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "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/2025-05-30T19:37:31Z/"
                        }
                    ],
                    "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226"
                },
                {
                    "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20843",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20843"
                },
                {
                    "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "5.3",
                            "scoring_system": "cvssv3",
                            "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                        }
                    ],
                    "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"
                },
                {
                    "reference_url": "https://github.com/libexpat/libexpat/issues/186",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "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"
                        },
                        {
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