Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/55616?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/55616?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1", "type": "nuget", "namespace": "", "name": "System.Net.Http.WinHttpHandler", "version": "4.3.1", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "4.5.4", "latest_non_vulnerable_version": "4.7.1", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/11397?format=api", "vulnerability_id": "VCID-qhka-1p38-nbg5", "summary": "Improper Input Validation\nA denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0247", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.11122", "scoring_system": "epss", "scoring_elements": "0.93593", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0247" }, { "reference_url": "https://github.com/aspnet/Announcements/issues/239", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/aspnet/Announcements/issues/239" }, { "reference_url": "https://technet.microsoft.com/en-us/library/security/4021279.aspx", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://technet.microsoft.com/en-us/library/security/4021279.aspx" }, { "reference_url": "https://www.sidertia.com/Home/Community/Blog/2017/05/18/ASPNET-Core-Unicode-Non-Char-Encoding-DoS", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://www.sidertia.com/Home/Community/Blog/2017/05/18/ASPNET-Core-Unicode-Non-Char-Encoding-DoS" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0247", "reference_id": "CVE-2017-0247", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0247" }, { "reference_url": "https://github.com/advisories/GHSA-6xh7-4v2w-36q6", "reference_id": "GHSA-6xh7-4v2w-36q6", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-6xh7-4v2w-36q6" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/55626?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.5.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.5.4" }, { "url": "http://public2.vulnerablecode.io/api/packages/123417?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.7.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.7.1" } ], "aliases": [ "CVE-2017-0247", "GHSA-6xh7-4v2w-36q6" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-qhka-1p38-nbg5" } ], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/11395?format=api", "vulnerability_id": "VCID-41h2-7dsr-6ybj", "summary": "Improper Input Validation\nA spoofing vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0256", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.04349", "scoring_system": "epss", "scoring_elements": "0.89109", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0256" }, { "reference_url": "https://github.com/aspnet/Announcements/issues/239", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/aspnet/Announcements/issues/239" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0256", "reference_id": "CVE-2017-0256", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0256" }, { "reference_url": "https://github.com/advisories/GHSA-j8f4-2w4p-mhjc", "reference_id": "GHSA-j8f4-2w4p-mhjc", "reference_type": "", "scores": [ { "value": "5.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-j8f4-2w4p-mhjc" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/55615?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.0.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.0.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/55616?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-qhka-1p38-nbg5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1" } ], "aliases": [ "CVE-2017-0256", "GHSA-j8f4-2w4p-mhjc" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-41h2-7dsr-6ybj" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/11389?format=api", "vulnerability_id": "VCID-b43k-e614-8qff", "summary": "Improper Input Validation\nAn elevation of privilege vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0249", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.05786", "scoring_system": "epss", "scoring_elements": "0.90631", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0249" }, { "reference_url": "https://github.com/aspnet/Announcements/issues/239", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/aspnet/Announcements/issues/239" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0249", "reference_id": "CVE-2017-0249", "reference_type": "", "scores": [ { "value": "7.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0249" }, { "reference_url": "https://github.com/advisories/GHSA-qhqf-ghgh-x2m4", "reference_id": "GHSA-qhqf-ghgh-x2m4", "reference_type": "", "scores": [ { "value": "7.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-qhqf-ghgh-x2m4" }, { "reference_url": "https://github.com/Aiko-IT-Systems/DisCatSharp/security/advisories/GHSA-wj4j-gr3f-cfh7", "reference_id": "GHSA-wj4j-gr3f-cfh7", "reference_type": "", "scores": [ { "value": "7.3", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/Aiko-IT-Systems/DisCatSharp/security/advisories/GHSA-wj4j-gr3f-cfh7" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/55615?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.0.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.0.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/55616?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-qhka-1p38-nbg5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1" } ], "aliases": [ "CVE-2017-0249", "GHSA-qhqf-ghgh-x2m4" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-b43k-e614-8qff" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/12989?format=api", "vulnerability_id": "VCID-pxft-qbch-xkbx", "summary": "Improper Certificate Validation\nMicrosoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka \".NET Security Feature Bypass Vulnerability.\"", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0248", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.01092", "scoring_system": "epss", "scoring_elements": "0.78258", "published_at": "2026-05-30T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2017-0248" }, { "reference_url": "https://github.com/aspnet/Announcements/issues/239", "reference_id": "", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/aspnet/Announcements/issues/239" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0248", "reference_id": "CVE-2017-0248", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0248" }, { "reference_url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248", "reference_id": "CVE-2017-0248", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248" }, { "reference_url": "https://github.com/advisories/GHSA-ch6p-4jcm-h8vh", "reference_id": "GHSA-ch6p-4jcm-h8vh", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-ch6p-4jcm-h8vh" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/55615?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.0.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.0.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/55616?format=api", "purl": "pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-qhka-1p38-nbg5" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1" } ], "aliases": [ "CVE-2017-0248", "GHSA-ch6p-4jcm-h8vh" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-pxft-qbch-xkbx" } ], "risk_score": "4.0", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/System.Net.Http.WinHttpHandler@4.3.1" }