{"id":"CVE-2026-44323","revision":"1531113ad92c450b9e82e3c88919e2c7","records":[{"revision":"1531113ad92c450b9e82e3c88919e2c7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-44323","aliases":[],"title":"free5GC: UDR nudr-dr DELETE amf-subscriptions panics on missing subsId when UE state exists (nil pointer dereference)","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 contains a nil-pointer dereference reachable from a single authenticated request, after one preparatory authenticated EE-subscription create. The handler checks _, ok = UESubsData.EeSubscriptionCollection[subsId] and sets a 404 problem-details on the miss path, but then continues to UESubsData.EeSubscriptionCollection[subsId].AmfSubscriptionInfos -- dereferencing the same missing entry instead of returning. 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":"2026-05-27T15:45:14.218+00:00","modifiedAt":"2026-06-01T17:08:45.474+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:L","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/free5gc/free5gc/security/advisories/GHSA-4rqf-grm6-vf75","https://github.com/free5gc/free5gc/issues/919","https://github.com/free5gc/udr/pull/60","https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-44323","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-44323","identifiers":["CVE-2026-44323"]},"retained":false,"historicalAffected":[]}],"coverage":[]}