Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/71291?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/71291?format=api", "purl": "pkg:golang/k8s.io/kubernetes@1.21.0", "type": "golang", "namespace": "k8s.io", "name": "kubernetes", "version": "1.21.0", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "1.21.1", "latest_non_vulnerable_version": "1.34.2", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/36170?format=api", "vulnerability_id": "VCID-jjnq-w1uh-dudy", "summary": "Incomplete List of Disallowed Inputs in Kubernetes\nA security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-25737.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.7", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-25737.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-25737", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59412", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59357", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59408", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59422", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59441", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59424", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59406", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59438", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59444", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59426", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59401", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59421", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59364", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59293", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59367", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00379", "scoring_system": "epss", "scoring_elements": "0.59391", "published_at": "2026-04-04T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-25737" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25737", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25737" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "2.7", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/kubernetes/kubernetes", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/kubernetes/kubernetes" }, { "reference_url": "https://github.com/kubernetes/kubernetes/issues/102106", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/kubernetes/kubernetes/issues/102106" }, { "reference_url": "https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thY", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thY" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25737", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25737" }, { "reference_url": "https://security.netapp.com/advisory/ntap-20211004-0004", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://security.netapp.com/advisory/ntap-20211004-0004" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1954917", "reference_id": "1954917", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1954917" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990793", "reference_id": "990793", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990793" }, { "reference_url": "https://security.archlinux.org/ASA-202106-29", "reference_id": "ASA-202106-29", "reference_type": "", "scores": [], "url": "https://security.archlinux.org/ASA-202106-29" }, { "reference_url": "https://security.archlinux.org/AVG-1970", "reference_id": "AVG-1970", "reference_type": "", "scores": [ { "value": "Low", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-1970" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:2437", "reference_id": "RHSA-2021:2437", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:2437" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/74324?format=api", "purl": "pkg:golang/k8s.io/kubernetes@1.21.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:golang/k8s.io/kubernetes@1.21.1" } ], "aliases": [ "CVE-2021-25737", "GHSA-mfv7-gq43-w965" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-jjnq-w1uh-dudy" } ], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/30489?format=api", "vulnerability_id": "VCID-w9b7-vajk-3kdq", "summary": "Kube-proxy may unintentionally forward traffic\nKube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (`spec.ports[*].port`) as a LoadBalancer Service when the LoadBalancer controller does not set the `status.loadBalancer.ingress[].ip` field. Clusters \nwhere the LoadBalancer controller sets the `status.loadBalancer.ingress[].ip` field are unaffected.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-25736.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-25736.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-25736", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.2349", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23409", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23528", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23563", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23573", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23684", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23706", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23716", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23705", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23762", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23674", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23887", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23729", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23846", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23806", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23791", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.0008", "scoring_system": "epss", "scoring_elements": "0.23744", "published_at": "2026-04-08T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-25736" }, { "reference_url": "https://github.com/kubernetes/kubernetes", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/kubernetes/kubernetes" }, { "reference_url": "https://github.com/kubernetes/kubernetes/commit/b014610de3e5cf1bb0f7844b5758d29fc18b75e6", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/kubernetes/kubernetes/commit/b014610de3e5cf1bb0f7844b5758d29fc18b75e6" }, { "reference_url": "https://github.com/kubernetes/kubernetes/pull/99958", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-12T14:39:48Z/" } ], "url": "https://github.com/kubernetes/kubernetes/pull/99958" }, { "reference_url": "https://groups.google.com/g/kubernetes-security-announce/c/lIoOPObO51Q/m/O15LOazPAgAJ", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-12T14:39:48Z/" } ], "url": "https://groups.google.com/g/kubernetes-security-announce/c/lIoOPObO51Q/m/O15LOazPAgAJ" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25736", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25736" }, { "reference_url": "https://security.netapp.com/advisory/ntap-20231221-0003", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://security.netapp.com/advisory/ntap-20231221-0003" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1946538", "reference_id": "1946538", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1946538" }, { "reference_url": "https://security.netapp.com/advisory/ntap-20231221-0003/", "reference_id": "ntap-20231221-0003", "reference_type": "", "scores": [ { "value": "5.8", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-06-12T14:39:48Z/" } ], "url": "https://security.netapp.com/advisory/ntap-20231221-0003/" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:2130", "reference_id": "RHSA-2021:2130", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:2130" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/71291?format=api", "purl": "pkg:golang/k8s.io/kubernetes@1.21.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-jjnq-w1uh-dudy" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:golang/k8s.io/kubernetes@1.21.0" } ], "aliases": [ "CVE-2021-25736", "GHSA-35c7-w35f-xwgh" ], "risk_score": null, "exploitability": null, "weighted_severity": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-w9b7-vajk-3kdq" } ], "risk_score": "3.1", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:golang/k8s.io/kubernetes@1.21.0" }