Package Instance

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/packages/58613?format=api",
    "purl": "pkg:nuget/System.Text.RegularExpressions@4.3.1",
    "type": "nuget",
    "namespace": "",
    "name": "System.Text.RegularExpressions",
    "version": "4.3.1",
    "qualifiers": {},
    "subpath": "",
    "is_vulnerable": false,
    "next_non_vulnerable_version": null,
    "latest_non_vulnerable_version": null,
    "affected_by_vulnerabilities": [],
    "fixing_vulnerabilities": [
        {
            "url": "http://public2.vulnerablecode.io/api/vulnerabilities/41279?format=api",
            "vulnerability_id": "VCID-bczw-w56v-n7dx",
            "summary": "Uncontrolled Resource Consumption\nA denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings, aka '.NET Framework and .NET Core Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0980, CVE-2019-0981.",
            "references": [
                {
                    "reference_url": "https://access.redhat.com/errata/RHSA-2019:1259",
                    "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": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://access.redhat.com/errata/RHSA-2019:1259"
                },
                {
                    "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0820.json",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "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://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0820.json"
                },
                {
                    "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2019-0820",
                    "reference_id": "",
                    "reference_type": "",
                    "scores": [
                        {
                            "value": "0.08083",
                            "scoring_system": "epss",
                            "scoring_elements": "0.92293",
                            "published_at": "2026-06-04T12:55:00Z"
                        }
                    ],
                    "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-0820"
                },
                {
                    "reference_url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820",
                    "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": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820"
                },
                {
                    "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1705506",
                    "reference_id": "1705506",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1705506"
                },
                {
                    "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0820",
                    "reference_id": "CVE-2019-0820",
                    "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": "HIGH",
                            "scoring_system": "generic_textual",
                            "scoring_elements": ""
                        }
                    ],
                    "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0820"
                },
                {
                    "reference_url": "https://github.com/advisories/GHSA-cmhx-cq75-c4mj",
                    "reference_id": "GHSA-cmhx-cq75-c4mj",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://github.com/advisories/GHSA-cmhx-cq75-c4mj"
                },
                {
                    "reference_url": "https://access.redhat.com/errata/RHSA-2019:1236",
                    "reference_id": "RHSA-2019:1236",
                    "reference_type": "",
                    "scores": [],
                    "url": "https://access.redhat.com/errata/RHSA-2019:1236"
                }
            ],
            "fixed_packages": [
                {
                    "url": "http://public2.vulnerablecode.io/api/packages/58613?format=api",
                    "purl": "pkg:nuget/System.Text.RegularExpressions@4.3.1",
                    "is_vulnerable": false,
                    "affected_by_vulnerabilities": [],
                    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Text.RegularExpressions@4.3.1"
                }
            ],
            "aliases": [
                "CVE-2019-0820",
                "GHSA-cmhx-cq75-c4mj"
            ],
            "risk_score": 4.0,
            "exploitability": "0.5",
            "weighted_severity": "8.0",
            "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-bczw-w56v-n7dx"
        }
    ],
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Text.RegularExpressions@4.3.1"
}