Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/12018?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/12018?format=api", "vulnerability_id": "VCID-keum-zdsz-s3by", "summary": "Allocation of Resources Without Limits or Throttling in Apache Avro\nA vulnerability in the .NET SDK of Apache Avro allows an attacker to allocate excessive resources, potentially causing a denial-of-service attack. This issue affects .NET applications using Apache Avro and prior versions. Users should update to which addresses this issue.", "aliases": [ { "alias": "CVE-2021-43045" }, { "alias": "GHSA-868x-rg4c-cjqg" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/80219?format=api", "purl": "pkg:nuget/Apache.Avro@1.11.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.11.0" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/276214?format=api", "purl": "pkg:nuget/Apache.Avro@1.7.7", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.7.7" }, { "url": "http://public2.vulnerablecode.io/api/packages/276215?format=api", "purl": "pkg:nuget/Apache.Avro@1.7.7.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.7.7.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/276216?format=api", "purl": "pkg:nuget/Apache.Avro@1.7.7.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.7.7.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/276217?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.0-beta001", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.0-beta001" }, { "url": "http://public2.vulnerablecode.io/api/packages/276218?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.0-beta002", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.0-beta002" }, { "url": "http://public2.vulnerablecode.io/api/packages/276219?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.0-rc1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.0-rc1" }, { "url": "http://public2.vulnerablecode.io/api/packages/276220?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.0-rc4", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.0-rc4" }, { "url": "http://public2.vulnerablecode.io/api/packages/276221?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/276222?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.1-alpha001", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.1-alpha001" }, { "url": "http://public2.vulnerablecode.io/api/packages/276223?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.1-alpha002", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.1-alpha002" }, { "url": "http://public2.vulnerablecode.io/api/packages/276224?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.1-alpha003", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.1-alpha003" }, { "url": "http://public2.vulnerablecode.io/api/packages/276225?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.1-rc1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.1-rc1" }, { "url": "http://public2.vulnerablecode.io/api/packages/276226?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/276227?format=api", "purl": "pkg:nuget/Apache.Avro@1.9.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.9.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/276228?format=api", "purl": "pkg:nuget/Apache.Avro@1.10.0-alpha001", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.10.0-alpha001" }, { "url": "http://public2.vulnerablecode.io/api/packages/276229?format=api", "purl": "pkg:nuget/Apache.Avro@1.10.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.10.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/276230?format=api", "purl": "pkg:nuget/Apache.Avro@1.10.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.10.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/276231?format=api", "purl": "pkg:nuget/Apache.Avro@1.10.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-6yqn-2w2d-3yd3" }, { "vulnerability": "VCID-keum-zdsz-s3by" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Apache.Avro@1.10.2" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-43045.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/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-2021-43045.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-43045", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58883", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58762", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58837", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58859", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58828", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58879", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58886", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58903", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58885", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58866", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58899", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.0037", "scoring_system": "epss", "scoring_elements": "0.58904", "published_at": "2026-04-18T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-43045" }, { "reference_url": "https://github.com/apache/avro", "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://github.com/apache/avro" }, { "reference_url": "https://github.com/apache/avro/pull/1357", "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://github.com/apache/avro/pull/1357" }, { "reference_url": "https://issues.apache.org/jira/browse/AVRO-3225", "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://issues.apache.org/jira/browse/AVRO-3225" }, { "reference_url": "https://issues.apache.org/jira/browse/AVRO-3226", "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://issues.apache.org/jira/browse/AVRO-3226" }, { "reference_url": "https://lists.apache.org/thread/5fttw9vk6gd2p3b846nox7hcj5469xfd", "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://lists.apache.org/thread/5fttw9vk6gd2p3b846nox7hcj5469xfd" }, { "reference_url": "http://www.openwall.com/lists/oss-security/2022/01/06/8", "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": "http://www.openwall.com/lists/oss-security/2022/01/06/8" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2042576", "reference_id": "2042576", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2042576" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43045", "reference_id": "CVE-2021-43045", "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-2021-43045" }, { "reference_url": "https://github.com/advisories/GHSA-868x-rg4c-cjqg", "reference_id": "GHSA-868x-rg4c-cjqg", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-868x-rg4c-cjqg" } ], "weaknesses": [ { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." }, { "cwe_id": 770, "name": "Allocation of Resources Without Limits or Throttling", "description": "The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." } ], "exploits": [], "severity_range_score": "7.0 - 8.9", "exploitability": "0.5", "weighted_severity": "8.0", "risk_score": 4.0, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-keum-zdsz-s3by" }