Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/937019?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/937019?format=api", "purl": "pkg:deb/debian/pyyaml@5.2-1?distro=trixie", "type": "deb", "namespace": "debian", "name": "pyyaml", "version": "5.2-1", "qualifiers": { "distro": "trixie" }, "subpath": "", "is_vulnerable": false, "next_non_vulnerable_version": "5.3-2", "latest_non_vulnerable_version": "6.0.3-1", "affected_by_vulnerabilities": [], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/6034?format=api", "vulnerability_id": "VCID-tk2n-xsk7-aqb9", "summary": "PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-20477.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "9.8", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-20477.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2019-20477", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64543", "published_at": "2026-05-09T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64497", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64327", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64441", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64406", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64447", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64435", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64419", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64371", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64411", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64381", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.6445", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64477", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64479", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64466", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64445", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00467", "scoring_system": "epss", "scoring_elements": "0.64452", "published_at": "2026-04-18T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-20477" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20477", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20477" }, { "reference_url": "https://github.com/advisories/GHSA-3pqx-4fqf-j49f", "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": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-3pqx-4fqf-j49f" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2020-176.yaml", "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": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2020-176.yaml" }, { "reference_url": "https://github.com/yaml/pyyaml", "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": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/yaml/pyyaml" }, { "reference_url": "https://github.com/yaml/pyyaml/blob/master/CHANGES", "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": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN", "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": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H", "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": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20477", "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": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20477" }, { "reference_url": "https://www.exploit-db.com/download/47655", "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": "9.3", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N" }, { "value": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://www.exploit-db.com/download/47655" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1806005", "reference_id": "1806005", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1806005" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2020:4641", "reference_id": "RHSA-2020:4641", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2020:4641" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:0420", "reference_id": "RHSA-2021:0420", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:0420" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/937019?format=api", "purl": "pkg:deb/debian/pyyaml@5.2-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyyaml@5.2-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/937015?format=api", "purl": "pkg:deb/debian/pyyaml@5.3.1-5?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyyaml@5.3.1-5%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/937013?format=api", "purl": "pkg:deb/debian/pyyaml@6.0-3?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyyaml@6.0-3%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/937017?format=api", "purl": "pkg:deb/debian/pyyaml@6.0.2-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyyaml@6.0.2-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/937016?format=api", "purl": "pkg:deb/debian/pyyaml@6.0.3-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyyaml@6.0.3-1%3Fdistro=trixie" } ], "aliases": [ "CVE-2019-20477", "GHSA-3pqx-4fqf-j49f", "PYSEC-2020-176" ], "risk_score": 4.5, "exploitability": "0.5", "weighted_severity": "9.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-tk2n-xsk7-aqb9" } ], "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/pyyaml@5.2-1%3Fdistro=trixie" }