Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/37956?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/37956?format=api", "purl": "pkg:nuget/System.Text.RegularExpressions@4.3.0", "type": "nuget", "namespace": "", "name": "System.Text.RegularExpressions", "version": "4.3.0", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "4.3.1", "latest_non_vulnerable_version": "4.3.1", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/10997?format=api", "vulnerability_id": "VCID-fp5s-gbub-8kfx", "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": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85812", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85762", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85781", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85785", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85779", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85802", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85687", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.857", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85718", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85724", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85744", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85754", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85769", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.02652", "scoring_system": "epss", "scoring_elements": "0.85766", "published_at": "2026-04-12T12:55:00Z" } ], "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": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "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/37957?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-fp5s-gbub-8kfx" } ], "fixing_vulnerabilities": [], "risk_score": "4.0", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Text.RegularExpressions@4.3.0" }