{"id":"CVE-2026-44323","revision":"c567f77246ba4256befe9b87c7520116","records":[{"revision":"c567f77246ba4256befe9b87c7520116","observedAt":"2026-10-25T10:17:21.823+00:00","statement":{"source":"nvd","id":"CVE-2026-44323","aliases":[],"title":"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 r…","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":"2026-05-27T17:16:37.627+00:00","modifiedAt":"2026-10-14T20:10:00.19+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","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"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","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/issues/919","https://github.com/free5gc/free5gc/security/advisories/GHSA-4rqf-grm6-vf75","https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99","https://github.com/free5gc/udr/pull/60"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44323","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-476"],"productCriteria":["cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-05-27T17:16:37.627","lastModified":"2026-10-14T20:10:00.190"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-44323","identifiers":["CVE-2026-44323"]},"retained":false,"historicalAffected":[]}],"coverage":[]}