Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/6612?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/6612?format=api", "purl": "pkg:pypi/pyyaml@3.13", "type": "pypi", "namespace": "", "name": "pyyaml", "version": "3.13", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "5.4", "latest_non_vulnerable_version": "5.4", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/5744?format=api", "vulnerability_id": "VCID-1d4s-2baq-wuhk", "summary": "In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-18342.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "9.8", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.0/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-2017-18342.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2017-18342", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89038", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89047", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89106", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89092", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89103", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89062", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89064", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89082", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89087", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89098", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89121", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.0447", "scoring_system": "epss", "scoring_elements": "0.89094", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.04807", "scoring_system": "epss", "scoring_elements": "0.89525", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.04807", "scoring_system": "epss", "scoring_elements": "0.89524", "published_at": "2026-04-26T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2017-18342" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18342", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18342" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.4", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/advisories/GHSA-rprw-h62v-c2w7", "reference_id": "", "reference_type": "", "scores": [ { "value": "CRITICAL", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-rprw-h62v-c2w7" }, { "reference_url": "https://github.com/marshmallow-code/apispec/issues/278", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/marshmallow-code/apispec/issues/278" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2018-49.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": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2018-49.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": "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": "CRITICAL", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/yaml/pyyaml/blob/master/CHANGES" }, { "reference_url": "https://github.com/yaml/pyyaml/commit/7b68405c81db889f83c32846462b238ccae5be80", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/yaml/pyyaml/commit/7b68405c81db889f83c32846462b238ccae5be80" }, { "reference_url": "https://github.com/yaml/pyyaml/issues/193", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/yaml/pyyaml/issues/193" }, { "reference_url": "https://github.com/yaml/pyyaml/pull/74", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/yaml/pyyaml/pull/74" }, { "reference_url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation" }, { "reference_url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA" }, { "reference_url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/" }, { "reference_url": "https://security.gentoo.org/glsa/202003-45", "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": "generic_textual", "scoring_elements": "" } ], "url": "https://security.gentoo.org/glsa/202003-45" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1595743", "reference_id": "1595743", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1595743" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=902878", "reference_id": "902878", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=902878" }, { "reference_url": "https://security.archlinux.org/AVG-843", "reference_id": "AVG-843", "reference_type": "", "scores": [ { "value": "High", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-843" }, { "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*", "reference_id": "cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*" }, { "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*", "reference_id": "cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*" }, { "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*", "reference_id": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*" }, { "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "reference_id": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18342", "reference_id": "CVE-2017-18342", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv2", "scoring_elements": "AV:N/AC:L/Au:N/C:P/I:P/A:P" }, { "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": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18342" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/34383?format=api", "purl": "pkg:pypi/pyyaml@4.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/pyyaml@4.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/6613?format=api", "purl": "pkg:pypi/pyyaml@4.2b1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1d4s-2baq-wuhk" }, { "vulnerability": "VCID-2wh2-rac2-53ax" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/pyyaml@4.2b1" }, { "url": "http://public2.vulnerablecode.io/api/packages/6620?format=api", "purl": "pkg:pypi/pyyaml@5.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-2wh2-rac2-53ax" }, { "vulnerability": "VCID-5y6u-xqht-n3ft" }, { "vulnerability": "VCID-hrtt-vfbb-87bf" }, { "vulnerability": "VCID-tk2n-xsk7-aqb9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/pyyaml@5.1" } ], "aliases": [ "CVE-2017-18342", "GHSA-rprw-h62v-c2w7", "PYSEC-2018-49" ], "risk_score": 4.5, "exploitability": "0.5", "weighted_severity": "9.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-1d4s-2baq-wuhk" }, { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/6258?format=api", "vulnerability_id": "VCID-2wh2-rac2-53ax", "summary": "A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-14343.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-2020-14343.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-14343", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.13704", "scoring_system": "epss", "scoring_elements": "0.94277", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.13704", "scoring_system": "epss", "scoring_elements": "0.94263", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.13704", "scoring_system": "epss", "scoring_elements": "0.94262", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.13704", "scoring_system": "epss", "scoring_elements": "0.94257", 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