Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/67915?format=api",
    "vulnerability_id": "VCID-qm61-d276-m3db",
    "summary": "free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-pfdmanagement route group without inbound OAuth2/bearer-token authorization. A network attacker who can reach NEF on the SBI can use a forged or arbitrary bearer token (e.g. Authorization: Bearer not-a-real-token) to read PFD application data via GET /applications and GET /applications/{appID}, and to create or delete PFD change-notification subscriptions via POST /subscriptions and DELETE /subscriptions/{subID}. Same root cause as the other NEF SBI findings: the route group is mounted without any inbound auth middleware. Unlike the OAM and traffic-influence groups, nnef-pfdmanagement IS declared in the runtime ServiceList, so this is the production-intended path that operators expect to be protected by OAuth2 setting receive from NRF: true -- and it is not. This vulnerability is fixed in 4.2.2.",
    "aliases": [
        {
            "alias": "CVE-2026-44330"
        },
        {
            "alias": "GHSA-rwww-x45w-p52w"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44330",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00048",
                    "scoring_system": "epss",
                    "scoring_elements": "0.15575",
                    "published_at": "2026-06-14T12:55:00Z"
                },
                {
                    "value": "0.00048",
                    "scoring_system": "epss",
                    "scoring_elements": "0.15462",
                    "published_at": "2026-06-11T12:55:00Z"
                },
                {
                    "value": "0.00048",
                    "scoring_system": "epss",
                    "scoring_elements": "0.1561",
                    "published_at": "2026-06-13T12:55:00Z"
                },
                {
                    "value": "0.00048",
                    "scoring_system": "epss",
                    "scoring_elements": "0.15598",
                    "published_at": "2026-06-12T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44330"
        },
        {
            "reference_url": "https://github.com/free5gc/free5gc/issues/862",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "10.0",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H"
                },
                {
                    "value": "CRITICAL",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/free5gc/free5gc/issues/862"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44330",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "10.0",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H"
                },
                {
                    "value": "CRITICAL",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44330"
        },
        {
            "reference_url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-rwww-x45w-p52w",
            "reference_id": "GHSA-rwww-x45w-p52w",
            "reference_type": "",
            "scores": [
                {
                    "value": "10",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H"
                },
                {
                    "value": "10.0",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H"
                },
                {
                    "value": "CRITICAL",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2026-05-27T18:47:29Z/"
                }
            ],
            "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-rwww-x45w-p52w"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 863,
            "name": "Incorrect Authorization",
            "description": "The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions."
        }
    ],
    "exploits": [],
    "severity_range_score": "9.0 - 10.0",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-qm61-d276-m3db"
}