{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-44324",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-05T19:00:06.023Z",
        "datePublished": "2026-05-27T15:44:27.616Z",
        "dateUpdated": "2026-05-28T14:38:09.624Z"
    },
    "containers": {
        "cna": {
            "title": "free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing UE state via nil interface type assertion (single authenticated request)",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-704",
                            "lang": "en",
                            "description": "CWE-704: Incorrect Type Conversion or Cast",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-754",
                            "lang": "en",
                            "description": "CWE-754: Improper Check for Unusual or Exceptional Conditions",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-jqfc-gwj5-3w63",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-jqfc-gwj5-3w63"
                },
                {
                    "name": "https://github.com/free5gc/free5gc/issues/920",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/free5gc/free5gc/issues/920"
                },
                {
                    "name": "https://github.com/free5gc/udr/pull/60",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/free5gc/udr/pull/60"
                },
                {
                    "name": "https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99"
                }
            ],
            "affected": [
                {
                    "vendor": "free5gc",
                    "product": "free5gc",
                    "versions": [
                        {
                            "version": "< 4.2.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-05-27T15:44:27.616Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/{ueId}/{servingPlmnId}/ee-subscriptions/{subsId}/amf-subscriptions handler panics on a single authenticated request against a fresh UDR instance when the supplied ueId does not exist in UESubsCollection. The processor checks value, ok := udrSelf.UESubsCollection.Load(ueId) and sets a 404 USER_NOT_FOUND problem-details on the miss path, but execution continues and immediately runs value.(*udr_context.UESubsData) -- a Go type assertion on a nil interface, which panics with interface conversion: interface {} is nil, not *context.UESubsData. Gin recovery converts the panic into HTTP 500, but the endpoint remains repeatedly panicable. This vulnerability is fixed in 4.2.2."
                }
            ],
            "source": {
                "advisory": "GHSA-jqfc-gwj5-3w63",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-jqfc-gwj5-3w63",
                        "tags": [
                            "exploit"
                        ]
                    },
                    {
                        "url": "https://github.com/free5gc/free5gc/issues/920",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-28T14:38:03.211329Z",
                                "id": "CVE-2026-44324",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-28T14:38:09.624Z"
                }
            }
        ]
    }
}