Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/41897?format=api",
    "vulnerability_id": "VCID-gcgx-zs1e-fqe4",
    "summary": "Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')\nAn issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false member down event messages.",
    "aliases": [
        {
            "alias": "CVE-2020-35216"
        },
        {
            "alias": "GHSA-6vvh-5794-vpmj"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/59864?format=api",
            "purl": "pkg:maven/io.atomix/atomix@3.1.5",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-3nuz-nbnn-m7g4"
                },
                {
                    "vulnerability": "VCID-63j1-wrv4-eyhc"
                },
                {
                    "vulnerability": "VCID-d2u5-wzzv-bfba"
                },
                {
                    "vulnerability": "VCID-dzxn-j3yx-ubdj"
                },
                {
                    "vulnerability": "VCID-gcgx-zs1e-fqe4"
                },
                {
                    "vulnerability": "VCID-p8xp-jj8y-67ga"
                },
                {
                    "vulnerability": "VCID-t9tx-rn9g-9bc9"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:maven/io.atomix/atomix@3.1.5"
        }
    ],
    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35216.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.9",
                    "scoring_system": "cvssv3",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
                }
            ],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35216.json"
        },
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-35216",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00416",
                    "scoring_system": "epss",
                    "scoring_elements": "0.62003",
                    "published_at": "2026-06-04T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-35216"
        },
        {
            "reference_url": "https://docs.google.com/presentation/d/1woXwR3vciv7ltFan6LyK5vsWXmaUi8ArZonhk80Gr5U/edit?usp=sharing",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.9",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://docs.google.com/presentation/d/1woXwR3vciv7ltFan6LyK5vsWXmaUi8ArZonhk80Gr5U/edit?usp=sharing"
        },
        {
            "reference_url": "https://github.com/atomix/atomix",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.9",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/atomix/atomix"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2056580",
            "reference_id": "2056580",
            "reference_type": "",
            "scores": [],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2056580"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35216",
            "reference_id": "CVE-2020-35216",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.9",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35216"
        },
        {
            "reference_url": "https://github.com/advisories/GHSA-6vvh-5794-vpmj",
            "reference_id": "GHSA-6vvh-5794-vpmj",
            "reference_type": "",
            "scores": [],
            "url": "https://github.com/advisories/GHSA-6vvh-5794-vpmj"
        }
    ],
    "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": 362,
            "name": "Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')",
            "description": "The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently."
        },
        {
            "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": "4.0 - 6.9",
    "exploitability": "0.5",
    "weighted_severity": "6.2",
    "risk_score": 3.1,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-gcgx-zs1e-fqe4"
}