{"id":"CVE-2026-44324","revision":"0ca10fa9201b4ab8aa02f1559a50dcf4","records":[{"revision":"0ca10fa9201b4ab8aa02f1559a50dcf4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44324","aliases":[],"title":"free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing UE state via nil interface type assertion (single authenticated request)","description":"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.","state":0,"publishedAt":"2026-05-27T15:44:27.616+00:00","modifiedAt":"2026-05-28T14:38:09.624+00:00","affected":[{"ecosystem":"Vendor product","name":"free5gc","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"free5gc\",\n                    \"product\": \"free5gc\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.2.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/free5gc/free5gc/security/advisories/GHSA-jqfc-gwj5-3w63","https://github.com/free5gc/free5gc/issues/920","https://github.com/free5gc/udr/pull/60","https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44324","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44324","identifiers":["CVE-2026-44324"]},"retained":false,"historicalAffected":[]}],"coverage":[]}